{"id":5797,"date":"2022-12-17T13:33:04","date_gmt":"2022-12-17T13:33:04","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5797"},"modified":"2026-04-28T10:42:11","modified_gmt":"2026-04-28T10:42:11","slug":"effect-of-uv-monomer-on-uv-curable-oxygen-blocking","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/effect-of-uv-monomer-on-uv-curable-oxygen-blocking\/","title":{"rendered":"Quel est l'effet du monom\u00e8re UV sur le blocage de l'oxyg\u00e8ne durcissant aux UV ?"},"content":{"rendered":"<h1><strong>Quel est l'effet du monom\u00e8re UV sur le blocage de l'oxyg\u00e8ne durcissant aux UV ?<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> For UV monomer and resin selection, the key commercial question is not \u201cwhich material is best in general\u201d but \u201cwhich package delivers the right balance of flow, cure, adhesion, and durability in the real application.\u201d<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>1.2 Pr\u00e9paration des \u00e9chantillons et tests<br \/>\nLe monom\u00e8re et l'initiateur ont \u00e9t\u00e9 pes\u00e9s avec pr\u00e9cision, lorsque le monom\u00e8re n'\u00e9tait pas purifi\u00e9, et m\u00e9lang\u00e9s uniform\u00e9ment \u00e0 l'aide d'un agitateur magn\u00e9tique. L'UV-DSC a \u00e9t\u00e9 utilis\u00e9 pour r\u00e9aliser des exp\u00e9riences de durcissement sous atmosph\u00e8re statique d'air et d'azote, et les \u00e9chantillons ont \u00e9t\u00e9 pr\u00e9lev\u00e9s en quantit\u00e9s \u00e9gales \u00e0 chaque fois, de sorte que l'\u00e9paisseur des \u00e9chantillons dans le creuset \u00e9tait la m\u00eame. Le programme UV-DSC a \u00e9t\u00e9 r\u00e9gl\u00e9 pour maintenir la temp\u00e9rature de l'\u00e9chantillon constante pendant 2 minutes, puis la source lumineuse a \u00e9t\u00e9 automatiquement allum\u00e9e par le programme, et la lumi\u00e8re UV (plage de longueur d'onde 325-400 nm) a \u00e9t\u00e9 introduite dans la cellule DSC par la fibre de verre pour \u00e9clairer le creuset de l'\u00e9chantillon et le creuset de r\u00e9f\u00e9rence, et le DSC a mesur\u00e9 la valeur du flux de chaleur du processus de photopolym\u00e9risation de l'\u00e9chantillon. L'intensit\u00e9 lumineuse a \u00e9t\u00e9 mesur\u00e9e \u00e0 48,27 mW-cm-2. L'intensit\u00e9 lumineuse a \u00e9t\u00e9 d\u00e9termin\u00e9e en \u00e9talant du noir de carbone sur le fond du creuset de l'\u00e9chantillon, et l'\u00e9nergie absorb\u00e9e par la lumi\u00e8re a \u00e9t\u00e9 mesur\u00e9e par UV-DSC et divis\u00e9e par la surface du fond du creuset pour obtenir l'intensit\u00e9 lumineuse.<\/p>\n<h2><strong>2 R\u00e9sultats et discussion<\/strong><\/h2>\n<h2><strong>2.1 Traitement des donn\u00e9es<\/strong><\/h2>\n<p>Le taux de photopolym\u00e9risation a \u00e9t\u00e9 calcul\u00e9 comme suit<\/p>\n<p>Le taux de photopolym\u00e9risation R=dC\/dt=(dH\/dt)\/Hmax, o\u00f9 dH\/dt est la valeur du flux de chaleur sur la courbe de l'enthalpie en fonction du temps du processus de photopolym\u00e9risation mesur\u00e9 par UV-DSC ; Hmax est la chaleur totale de polym\u00e9risation de l'\u00e9chantillon \u00e0 200 s d'exposition \u00e0 la lumi\u00e8re, obtenue en int\u00e9grant le pic exothermique de photopolym\u00e9risation. Le temps correspondant au taux de polym\u00e9risation maximal du processus de photopolym\u00e9risation est tmax. La polym\u00e9risation des radicaux libres se produit automatiquement de mani\u00e8re acc\u00e9l\u00e9r\u00e9e, la courbe du taux de photopolym\u00e9risation est d\u00e9riv\u00e9e du temps, la valeur maximale de la courbe correspondant au temps enregistr\u00e9 comme tamax, ce temps peut \u00eatre consid\u00e9r\u00e9 comme le temps de croissance le plus rapide du taux de photopolym\u00e9risation, \u00e0 ce moment le syst\u00e8me de blocage de l'oxyg\u00e8ne et l'effet de cage et d'autres facteurs sur la consommation de radicaux primaires \u00e0 un minimum. Le monom\u00e8re initiateur de radicaux libres commence \u00e0 polym\u00e9riser rapidement.<\/p>\n<p>Calcul de la teneur en initiateur (fraction molaire) \u03b1 dans l'\u00e9chantillon :<\/p>\n<p>&nbsp;<\/p>\n<p>O\u00f9 n initiateur est la quantit\u00e9 molaire d'initiateur dans le syst\u00e8me, f est le degr\u00e9 fonctionnel du monom\u00e8re, et n monom\u00e8re est la quantit\u00e9 molaire de monom\u00e8re dans le syst\u00e8me. La figure 1 montre la structure mol\u00e9culaire de l'initiateur Irgacure-184, qui est un type de clivage, et le \"2\" dans la formule (1) signifie qu'une mol\u00e9cule de l'initiateur peut th\u00e9oriquement \u00eatre d\u00e9compos\u00e9e en deux mol\u00e9cules de radicaux par exposition \u00e0 la lumi\u00e8re.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-5798\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/The-structural-formula-of-Irgacure-184.jpg\" alt=\"\" width=\"174\" height=\"94\" \/><\/p>\n<p>La formule structurelle de l'Irgacure-184<\/p>\n<p>&nbsp;<\/p>\n<p>La figure 2 montre les courbes de vitesse de la photopolym\u00e9risation de diff\u00e9rents monom\u00e8res \u00e0 une teneur en initiateur 4% (fraction de masse). Comme on peut le voir sur la figure, pour diff\u00e9rents monom\u00e8res, il existe des diff\u00e9rences dans la vitesse de durcissement dans la p\u00e9riode de pr\u00e9polym\u00e9risation, et cette diff\u00e9rence est \u00e9galement exprim\u00e9e en temps, ce qui indique que diff\u00e9rents monom\u00e8res durcissent aux UV dans des diff\u00e9rences de vitesse dans le temps. Le temps tamax o\u00f9 le taux de photopolym\u00e9risation du monom\u00e8re cro\u00eet le plus rapidement et le temps tmax correspondant au taux de photopolym\u00e9risation maximal sont compar\u00e9s \u00e0 la courbe de variation de la teneur en initiateur, et les r\u00e9sultats sont pr\u00e9sent\u00e9s \u00e0 la figure 3.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-5799\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/UV-curing-rate-curves-of-different-monomers-with-4-initiator.jpg\" alt=\"\" width=\"431\" height=\"327\" \/><\/p>\n<p>Courbes de vitesse de durcissement aux UV de diff\u00e9rents monom\u00e8res avec l'initiateur 4%<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-5800\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/The-relationship-of-tamax-and-tmax-with-initiator-contents-in-curing-process-in-air-of-different-monomers-650x333.jpg\" alt=\"\" width=\"650\" height=\"333\" \/><\/p>\n<p>La relation entre\u00a0<i>t<\/i><sub>amax\u00a0<\/sub>et\u00a0<i>t<\/i><sub>max<\/sub>\u00a0avec les teneurs en initiateurs dans le processus de durcissement \u00e0 l'air de diff\u00e9rents monom\u00e8res<\/p>\n<p>La figure 3 montre les courbes de tmax et tamax pour la photopolym\u00e9risation de diff\u00e9rents monom\u00e8res sous air en fonction de la teneur en initiateur \u03b1 dans l'\u00e9chantillon. Au d\u00e9but de la polym\u00e9risation, en pr\u00e9sence d'oxyg\u00e8ne, une partie des radicaux r\u00e9actifs g\u00e9n\u00e9r\u00e9s par le photo-initiateur sous l'effet de la lumi\u00e8re est consomm\u00e9e par l'oxyg\u00e8ne dissous dans l'\u00e9chantillon, et l'autre partie initie la polym\u00e9risation du monom\u00e8re. L'effet de blocage de l'oxyg\u00e8ne consomme les radicaux g\u00e9n\u00e9r\u00e9s par la d\u00e9composition de l'initiateur et les radicaux monom\u00e8res, affectant ainsi l'ampleur de tamax et de tmax de la photopolym\u00e9risation, ce qui refl\u00e8te \u00e0 son tour la sensibilit\u00e9 de la photopolym\u00e9risation \u00e0 l'oxyg\u00e8ne et \u00e0 la teneur en initiateur. Comme le montre la figure 3a, le tamax de la photopolym\u00e9risation de chaque monom\u00e8re diminue avec l'augmentation de la teneur en initiateur selon un certain sch\u00e9ma. Dans la figure 3b, le tmax de chaque monom\u00e8re photopolym\u00e9risable montre une certaine fluctuation avec l'augmentation de la teneur en initiateur. Cela s'explique par le fait que lorsque le taux de r\u00e9action de durcissement atteint son maximum, le syst\u00e8me a atteint un degr\u00e9 de durcissement \u00e9lev\u00e9 et les segments de la cha\u00eene mol\u00e9culaire sont progressivement gel\u00e9s en raison de l'effet vitreux, et la sensibilit\u00e9 du tmax de la r\u00e9action de durcissement \u00e0 la lumi\u00e8re \u00e0 la teneur en initiateur est r\u00e9duite \u00e0 ce moment-l\u00e0. Alors que le tamax, au d\u00e9but de la photopolym\u00e9risation, lorsque le syst\u00e8me n'a pas un degr\u00e9 de polym\u00e9risation \u00e9lev\u00e9, la r\u00e9action de photopolym\u00e9risation est plus sensible \u00e0 la teneur de l'initiateur dans le syst\u00e8me. Par cons\u00e9quent, en comparaison, le tamax refl\u00e8te mieux la sensibilit\u00e9 de la photopolym\u00e9risation \u00e0 la teneur en initiateur.<\/p>\n<h3><strong>2.2 Effet de l'atmosph\u00e8re sur le tamax photopolym\u00e9risable de diff\u00e9rents monom\u00e8res<\/strong><\/h3>\n<p>Dans une atmosph\u00e8re d'air, le tamax du mat\u00e9riau photopolym\u00e9ris\u00e9 devrait \u00eatre diff\u00e9rent de celui dans une atmosph\u00e8re d'azote en raison de l'effet de blocage de l'oxyg\u00e8ne. Des tests UV-DSC ont \u00e9t\u00e9 effectu\u00e9s sur le monom\u00e8re TMPTA sous atmosph\u00e8re d'air et d'azote lorsqu'une teneur plus faible en initiateur a \u00e9t\u00e9 ajout\u00e9e, et les r\u00e9sultats sont r\u00e9pertori\u00e9s dans le tableau 1.<\/p>\n<table width=\"459\">\n<tbody>\n<tr>\n<td width=\"315\">tamaxtamax de TMPTA Durcissement aux UV avec une faible teneur en initiateurs dans l'air ou N2<\/td>\n<td width=\"72\"><\/td>\n<td width=\"72\"><\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\" width=\"315\">Teneur en initiateur de l'\u00e9chantillon\/%<\/td>\n<td colspan=\"2\" width=\"144\">tamax\/s<\/td>\n<\/tr>\n<tr>\n<td width=\"72\">l'air<\/td>\n<td width=\"72\">N2<\/td>\n<\/tr>\n<tr>\n<td width=\"315\">0.48<\/td>\n<td width=\"72\">2.65<\/td>\n<td width=\"72\">2.18<\/td>\n<\/tr>\n<tr>\n<td width=\"315\">0.96<\/td>\n<td width=\"72\">2.12<\/td>\n<td width=\"72\">1.92<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><i>t<\/i><sub>amax<\/sub>\u00a0de TMPTA durcissant aux UV avec une faible teneur en initiateurs dans l'air ou dans l'azote<sub>2<\/sub><\/p>\n<p>Le tableau 1 montre la comparaison du tamax du TMPTA photopolym\u00e9ris\u00e9 \u00e0 l'air et \u00e0 l'azote respectivement avec l'ajout de niveaux inf\u00e9rieurs d'initiateur. Le tableau ci-dessus montre que le tamax de la photopolym\u00e9risation \u00e0 l'air est plus important que celui de la photopolym\u00e9risation \u00e0 l'azote lorsque la teneur en initiateur est \u00e9gale, ce qui indique que la photopolym\u00e9risation \u00e0 l'air est affect\u00e9e par le blocage de l'oxyg\u00e8ne. On pense g\u00e9n\u00e9ralement que l'oxyg\u00e8ne dissous dans la mati\u00e8re premi\u00e8re et \u00e0 la surface subit les r\u00e9actions suivantes au cours du processus de photopolym\u00e9risation.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-5801\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/1.jpg\" alt=\"\" width=\"238\" height=\"109\" \/><\/p>\n<p>Les radicaux peroxydes ROO- g\u00e9n\u00e9r\u00e9s sont tr\u00e8s stables et n'ont pas la capacit\u00e9 d'initier des r\u00e9actions de polym\u00e9risation. L'oxyg\u00e8ne ne se contente pas d'\u00e9liminer les radicaux g\u00e9n\u00e9r\u00e9s par l'initiateur au cours du processus de photopolym\u00e9risation, mais il met \u00e9galement fin aux radicaux des monom\u00e8res.<\/p>\n<p>La sensibilit\u00e9 de la photopolym\u00e9risation \u00e0 la polym\u00e9risation bloquant l'oxyg\u00e8ne varie selon les monom\u00e8res et est li\u00e9e \u00e0 des facteurs tels que les fonctionnalit\u00e9s du monom\u00e8re, l'activit\u00e9 de la double liaison et la structure [13]. Afin d'\u00e9tudier l'effet de la structure du monom\u00e8re sur l'agr\u00e9gation bloquant l'oxyg\u00e8ne, deux TMPTA EO-is\u00e9s diff\u00e9rents ont \u00e9t\u00e9 s\u00e9lectionn\u00e9s pour des exp\u00e9riences UV-DSC dans des conditions d'air et d'azote, respectivement. Ces monom\u00e8res homologues ont tous des structures similaires, \u00e0 l'exception du nombre de groupes EO, ce qui \u00e9vite de compliquer le probl\u00e8me en choisissant d'autres monom\u00e8res avec des structures tr\u00e8s diff\u00e9rentes [13].<\/p>\n<p>La figure 4 montre la variation du tamax en fonction de la teneur en initiateur dans l'\u00e9chantillon pour la photopolym\u00e9risation de monom\u00e8res TMPTA avec diff\u00e9rentes OE sous air et azote. Comme le montre la figure, le tamax de chaque monom\u00e8re photopolym\u00e9ris\u00e9 \u00e0 l'air et \u00e0 l'azote diminue avec l'augmentation de la teneur en initiateur. La variation du tamax photopolym\u00e9ris\u00e9 de chaque monom\u00e8re sous air et azote varie avec la quantit\u00e9 d'OE dans le monom\u00e8re. Cela montre que la quantit\u00e9 d'OE dans le monom\u00e8re a un effet sur le tamax de la photopolym\u00e9risation. Pour un m\u00eame monom\u00e8re, la diff\u00e9rence de tamax photopolym\u00e9ris\u00e9 sous air et sous azote est li\u00e9e \u00e0 la barri\u00e8re d'oxyg\u00e8ne lorsque les autres conditions sont identiques.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-5802\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/The-relationship-of-tamax-with-initiator-contents-in-curing-process-of-different-ethoxylated-TMPTA-650x329.jpg\" alt=\"\" width=\"650\" height=\"329\" \/><\/p>\n<p>La figure 5 montre les courbes du rapport de tamax de chaque monom\u00e8re photopolym\u00e9ris\u00e9 sous diff\u00e9rentes atmosph\u00e8res avec la variation de la teneur en initiateur \u03b1. tamax(air)\/tamax(N2) indique la diff\u00e9rence de tamax du monom\u00e8re photopolym\u00e9ris\u00e9 sous air et sous azote, refl\u00e9tant ainsi l'ampleur du blocage de l'oxyg\u00e8ne de chaque monom\u00e8re photopolym\u00e9ris\u00e9, plus la valeur est grande, plus l'effet de blocage de l'oxyg\u00e8ne est important. Comme le montre la figure 5, les rapports tamax(air)\/tamax(N2) du monom\u00e8re TMPTA et du monom\u00e8re 3EOTMPTA \u00e9taient plus importants lorsque la teneur en initiateur \u00e9tait faible et diminuaient avec l'augmentation de la teneur en initiateur. Cela indique que le monom\u00e8re TMPTA et le monom\u00e8re 3EOTMPTA sont soumis \u00e0 un effet de blocage de l'oxyg\u00e8ne plus important lorsque la teneur en initiateur est faible. Lorsque la quantit\u00e9 d'OE dans le monom\u00e8re atteint 15, le rapport tamax(air)\/tamax(N2) du monom\u00e8re est proche de 1, c'est-\u00e0-dire qu'il y a peu de diff\u00e9rence entre le tamax(air)\/tamax(N2) et le tamax(air)\/tamax(N2), Il y a peu de diff\u00e9rence dans le tamax du durcissement \u00e0 la lumi\u00e8re dans des conditions d'air ou d'azote, ce qui indique que l'augmentation de la quantit\u00e9 d'OE dans le monom\u00e8re est b\u00e9n\u00e9fique pour r\u00e9duire la polym\u00e9risation bloquant l'oxyg\u00e8ne du durcissement aux UV, ce qui peut \u00eatre li\u00e9 \u00e0 l'hydrog\u00e8ne actif dans la structure de l'OE.La structure de type \u00e9ther dans la fraction OE L'\u03b1-H sur le -O-CH2- est facilement substitu\u00e9 par l'oxyg\u00e8ne et les r\u00e9actions suivantes se produisent.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-5803\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/2.jpg\" alt=\"\" width=\"436\" height=\"98\" \/><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-5804\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/The-relationship-of-tamaxair-tamaxN2-with-initator-contents-in-curing-process-of-different-ethoxylated-TMPTA.jpg\" alt=\"\" width=\"406\" height=\"325\" \/><\/p>\n<p>La relation entre\u00a0<i>t<\/i><sub>amax<\/sub>(air)\/<i>t<\/i><sub>amax<\/sub>(N<sub>2<\/sub>) en fonction de la teneur en initateurs dans le processus de durcissement de diff\u00e9rents TMPTA \u00e9thoxyl\u00e9s.<\/p>\n<p>D'une part, l'\u03b1-H peut consommer une partie de l'oxyg\u00e8ne dans le syst\u00e8me, d'autre part, il peut mettre fin au radical peroxyde ROO- g\u00e9n\u00e9r\u00e9 par le radical et l'oxyg\u00e8ne, r\u00e9duisant ainsi la consommation de radicaux r\u00e9actifs et redirigeant l'activit\u00e9 d'initiation vers le segment de cha\u00eene ayant une activit\u00e9 d'initiation, r\u00e9duisant ainsi le blocage par l'oxyg\u00e8ne du processus de photopolym\u00e9risation.<\/p>\n<h3><strong>2.3 Influence de la quantit\u00e9 d'\u03b1-H dans les monom\u00e8res sur l'agr\u00e9gation de blocage de l'oxyg\u00e8ne par photopolym\u00e9risation<\/strong><\/h3>\n<p>Pour \u00e9tudier la relation entre le blocage de l'oxyg\u00e8ne et la quantit\u00e9 d'\u03b1-H dans les groupes EO monom\u00e8res, les courbes tamax-\u03b1 de la figure 4 ont \u00e9t\u00e9 ajust\u00e9es lin\u00e9airement \u00e0 diff\u00e9rentes \u00e9quations, et il a \u00e9t\u00e9 constat\u00e9 que le coefficient de corr\u00e9lation le plus \u00e9lev\u00e9 a \u00e9t\u00e9 obtenu en ajustant lin\u00e9airement l'\u00e9quation lnt=a+b\/\u03b10,5. Les pentes b obtenues \u00e0 partir des ajustements et les coefficients de corr\u00e9lation R sont r\u00e9pertori\u00e9s dans le tableau 2.<\/p>\n<table width=\"360\">\n<tbody>\n<tr>\n<td width=\"72\">La valeur de b et R par ajustement lin\u00e9aire 1\/\u03b10,5 et lnt<\/td>\n<td width=\"72\"><\/td>\n<td width=\"72\"><\/td>\n<td width=\"72\"><\/td>\n<td width=\"72\"><\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\" width=\"72\">Monom\u00e8re<\/td>\n<td colspan=\"2\" width=\"144\">l'air<\/td>\n<td colspan=\"2\" width=\"144\">N2<\/td>\n<\/tr>\n<tr>\n<td width=\"72\">b<\/td>\n<td width=\"72\">R<\/td>\n<td width=\"72\">b<\/td>\n<td width=\"72\">R<\/td>\n<\/tr>\n<tr>\n<td width=\"72\">TMPTA<\/td>\n<td width=\"72\">0.056<\/td>\n<td width=\"72\">0.99894<\/td>\n<td width=\"72\">0.0213<\/td>\n<td width=\"72\">0.95494<\/td>\n<\/tr>\n<tr>\n<td width=\"72\">EO3TMPTA<\/td>\n<td width=\"72\">0.0554<\/td>\n<td width=\"72\">0.95877<\/td>\n<td width=\"72\">0.0257<\/td>\n<td width=\"72\">0.98564<\/td>\n<\/tr>\n<tr>\n<td width=\"72\">15EOTMPTA<\/td>\n<td width=\"72\">0.0531<\/td>\n<td width=\"72\">0.96578<\/td>\n<td width=\"72\">0.062<\/td>\n<td width=\"72\">0.98944<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>En comparant les valeurs \u03bc correspondant \u00e0 diff\u00e9rents monom\u00e8res dans la Figure 6, \u03bc a une valeur maximale lorsque le monom\u00e8re est le TMPTA, c'est-\u00e0-dire que l'effet de blocage de l'oxyg\u00e8ne est le plus important lorsque le monom\u00e8re TMPTA est polym\u00e9ris\u00e9 aux UV. Lorsque la quantit\u00e9 d'EO dans le monom\u00e8re augmente, la quantit\u00e9 d'\u03b1-H dans le monom\u00e8re augmente et la valeur \u03bc diminue, ce qui indique que la barri\u00e8re \u00e0 l'oxyg\u00e8ne est li\u00e9e \u00e0 la quantit\u00e9 d'\u03b1-H dans le monom\u00e8re, qui pi\u00e8ge l'oxyg\u00e8ne et les radicaux peroxydes dans le syst\u00e8me et att\u00e9nue la barri\u00e8re \u00e0 l'oxyg\u00e8ne. La viscosit\u00e9 est une propri\u00e9t\u00e9 li\u00e9e \u00e0 la structure mol\u00e9culaire, qui implique les propri\u00e9t\u00e9s d'\u00e9coulement du monom\u00e8re, il est donc n\u00e9cessaire de discuter davantage de l'effet des propri\u00e9t\u00e9s d'\u00e9coulement du monom\u00e8re sur la polym\u00e9risation de la barri\u00e8re \u00e0 l'oxyg\u00e8ne.<\/p>\n<h3><strong>2.4 Influence des propri\u00e9t\u00e9s d'\u00e9coulement des monom\u00e8res sur l'agr\u00e9gation de la barri\u00e8re \u00e0 l'oxyg\u00e8ne<\/strong><\/h3>\n<p>Les propri\u00e9t\u00e9s d'\u00e9coulement du syst\u00e8me sont li\u00e9es \u00e0 la structure de la mol\u00e9cule. En g\u00e9n\u00e9ral, plus la cha\u00eene mol\u00e9culaire est souple, plus la barri\u00e8re de rotation au sein de la cha\u00eene est faible, plus le segment de cha\u00eene est court en tant qu'unit\u00e9 mobile, et plus l'\u00e9nergie d'activation de la cha\u00eene mol\u00e9culaire souple est faible, meilleure est la mobilit\u00e9. Plus le poids mol\u00e9culaire est \u00e9lev\u00e9, plus la r\u00e9sistance interne au mouvement mol\u00e9culaire due \u00e0 la friction est importante et plus la mobilit\u00e9 est faible [19]. Par cons\u00e9quent, l'introduction de groupes EO dans le monom\u00e8re TMPTA modifiera les propri\u00e9t\u00e9s d'\u00e9coulement du syst\u00e8me. En utilisant un rh\u00e9om\u00e8tre avec un taux de cisaillement constant de 19,1 \/min et un taux d'augmentation de la temp\u00e9rature de 2 \u00b0C\/min, les courbes de viscosit\u00e9 de chaque monom\u00e8re ont \u00e9t\u00e9 mesur\u00e9es en fonction de la temp\u00e9rature. Les courbes de viscosit\u00e9-temp\u00e9rature de chaque monom\u00e8re ont \u00e9t\u00e9 ajust\u00e9es \u00e0 l'\u00e9quation d'Arrhenius, et l'\u00e9nergie d'activation de l'\u00e9coulement calcul\u00e9e E, le pr\u00e9facteur A et la viscosit\u00e9 du monom\u00e8re \u03b7 \u00e0 25 \u2103 ont \u00e9t\u00e9 r\u00e9pertori\u00e9s dans le tableau 3.<\/p>\n<table width=\"405\">\n<tbody>\n<tr>\n<td colspan=\"4\" width=\"405\">La valeur de la viscosit\u00e9 \u03b7(25 \u2103), l'\u00e9nergie d'activation de l'\u00e9coulement E et le facteur pr\u00e9-exponentiel A des monom\u00e8res.<\/td>\n<\/tr>\n<tr>\n<td width=\"109\">Monom\u00e8re<\/td>\n<td width=\"72\">\u03b7\/Pa-s(25\u2103)<\/td>\n<td width=\"72\">A\/10-8<\/td>\n<td width=\"152\">E\/J<\/td>\n<\/tr>\n<tr>\n<td width=\"109\">TMPTA<\/td>\n<td width=\"72\">0.01934<\/td>\n<td width=\"72\">15.53<\/td>\n<td width=\"152\">29079.88<\/td>\n<\/tr>\n<tr>\n<td width=\"109\">3EOTMPTA<\/td>\n<td width=\"72\">0.06948<\/td>\n<td width=\"72\">2.65<\/td>\n<td width=\"152\">36600.47<\/td>\n<\/tr>\n<tr>\n<td width=\"109\">15EOTMPTA<\/td>\n<td width=\"72\">0.18016<\/td>\n<td width=\"72\">6.28<\/td>\n<td width=\"152\">36821.87<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Parmi eux, l'\u00e9nergie d'activation du flux E est li\u00e9e \u00e0 la structure mol\u00e9culaire et est influenc\u00e9e par la rigidit\u00e9 et la flexibilit\u00e9 de la cha\u00eene mol\u00e9culaire, la taille et la polarit\u00e9 des groupes lat\u00e9raux, etc. Le facteur de front d'indice A est une constante li\u00e9e au poids mol\u00e9culaire. Afin d'\u00e9tudier la relation entre les propri\u00e9t\u00e9s d'\u00e9coulement des monom\u00e8res et la barri\u00e8re \u00e0 l'oxyg\u00e8ne, les valeurs \u03bc de diff\u00e9rents monom\u00e8res ont \u00e9t\u00e9 corr\u00e9l\u00e9es avec les viscosit\u00e9s \u03b7 correspondantes, l'\u00e9nergie d'activation de l'\u00e9coulement E et le pr\u00e9facteur A, comme le montre la figure 7.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-5805\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/3-650x433.jpg\" alt=\"\" width=\"650\" height=\"433\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/3-650x433.jpg 650w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/12\/3-325x217.jpg 325w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<p>La figure 7 repr\u00e9sente la comparaison des valeurs \u03bc de diff\u00e9rents monom\u00e8res en fonction de l'\u00e9nergie d'activation de l'\u00e9coulement E, du facteur de front de doigt A et de la viscosit\u00e9 \u03b7, respectivement. Comme le montre la figure 7a, la valeur \u03bc tend \u00e0 diminuer lorsque le nombre d'OE dans le monom\u00e8re augmente et que la viscosit\u00e9 du monom\u00e8re augmente. La taille de l'agr\u00e9gation bloquant l'oxyg\u00e8ne est \u00e9troitement li\u00e9e \u00e0 la concentration d'oxyg\u00e8ne, et plus la concentration d'oxyg\u00e8ne est importante, plus le blocage de l'oxyg\u00e8ne est \u00e9vident [7]. \u00c0 l'int\u00e9rieur du syst\u00e8me de photopolym\u00e9risation, la quantit\u00e9 d'oxyg\u00e8ne dissous est certaine, et le taux d'extinction et de pi\u00e9geage des radicaux libres par l'oxyg\u00e8ne dans le processus de photopolym\u00e9risation est extr\u00eamement rapide, et l'oxyg\u00e8ne consomm\u00e9 est principalement reconstitu\u00e9 par la diffusion de l'oxyg\u00e8ne de l'air vers l'int\u00e9rieur du syst\u00e8me en continu, ce qui impliquera certainement la capacit\u00e9 de mouvement de l'oxyg\u00e8ne dans le syst\u00e8me, et la capacit\u00e9 de mouvement de l'oxyg\u00e8ne dans le syst\u00e8me est li\u00e9e \u00e0 la viscosit\u00e9 du syst\u00e8me. Lorsque la viscosit\u00e9 du syst\u00e8me est faible, l'oxyg\u00e8ne de l'air est plus facile \u00e0 diffuser \u00e0 l'int\u00e9rieur du syst\u00e8me, montrant un effet de blocage de l'oxyg\u00e8ne plus important, de sorte que la valeur \u03bc du monom\u00e8re TMPTA est plus \u00e9lev\u00e9e et est significativement bloqu\u00e9e par l'oxyg\u00e8ne. Lorsque la viscosit\u00e9 du syst\u00e8me augmente, la capacit\u00e9 de mouvement de l'oxyg\u00e8ne dans le syst\u00e8me diminue et il est trop tard pour reconstituer l'oxyg\u00e8ne consomm\u00e9 en pi\u00e9geant les radicaux libres, et le blocage de l'oxyg\u00e8ne diminue. Comme on peut le voir sur la figure, lorsque la quantit\u00e9 d'OE dans le monom\u00e8re augmente jusqu'\u00e0 15, la viscosit\u00e9 du monom\u00e8re continue d'augmenter et la valeur \u03bc tend vers 1, c'est-\u00e0-dire que la diff\u00e9rence entre la photopolym\u00e9risation sous air et sous azote n'est pas significative.<br \/>\nEnsuite, comparez l'\u00e9nergie d'activation de l'\u00e9coulement et le facteur de front de doigt du monom\u00e8re avec la valeur \u03bc. Comme le montre la figure 7b, l'\u00e9nergie d'activation de l'\u00e9coulement du monom\u00e8re augmente de TMPTA \u00e0 3EOTMPTA avec l'introduction de groupes EO dans le monom\u00e8re. Lorsque la quantit\u00e9 d'OE dans le monom\u00e8re est pass\u00e9e de 3 \u00e0 15, l'\u00e9nergie d'activation de l'\u00e9coulement est rest\u00e9e pratiquement inchang\u00e9e, ce qui indique que l'augmentation de la quantit\u00e9 d'OE dans le monom\u00e8re n'a pratiquement aucun effet sur l'\u00e9nergie d'activation de l'\u00e9coulement. En effet, bien que le nombre d'OE dans le monom\u00e8re augmente, le nombre d'unit\u00e9s cin\u00e9matiques ne change pas, ce qui montre que pour le monom\u00e8re TMPTA OE, l'effet de l'\u00e9nergie d'activation de l'\u00e9coulement sur la barri\u00e8re \u00e0 l'oxyg\u00e8ne n'est pas significatif. Comme le montre la figure 7c, le pr\u00e9facteur de doigt A change consid\u00e9rablement entre le TMPTA et le 3EOTMPTA, ce qui peut \u00eatre li\u00e9 \u00e0 la pr\u00e9sence ou \u00e0 l'absence de groupes EO. Avec l'augmentation du nombre d'OE dans le monom\u00e8re, le pr\u00e9facteur A augmente, ce qui est d\u00fb \u00e0 l'augmentation du nombre d'OE dans le monom\u00e8re conduisant \u00e0 l'augmentation du poids mol\u00e9culaire du monom\u00e8re. Il peut \u00eatre d\u00e9montr\u00e9 que pour les monom\u00e8res TMPTA OE, l'augmentation du nombre d'OE dans la mol\u00e9cule entra\u00eene une augmentation du poids mol\u00e9culaire, ce qui conduit \u00e0 une augmentation de la viscosit\u00e9 du monom\u00e8re et r\u00e9duit donc la barri\u00e8re \u00e0 l'oxyg\u00e8ne. Pour les mat\u00e9riaux polym\u00e8res, la viscosit\u00e9 du syst\u00e8me peut g\u00e9n\u00e9ralement \u00eatre augment\u00e9e en augmentant la rigidit\u00e9 de la cha\u00eene mol\u00e9culaire, en augmentant la polarit\u00e9 des groupes lat\u00e9raux, en augmentant le poids mol\u00e9culaire, etc. On peut supposer que les effets n\u00e9gatifs du blocage de l'oxyg\u00e8ne par photopolym\u00e9risation peuvent \u00eatre r\u00e9duits par une composition appropri\u00e9e de la formulation, telle que l'introduction de structures contenant de l'hydrog\u00e8ne actif, l'augmentation de la proportion de mol\u00e9cules rigides et l'augmentation du poids mol\u00e9culaire.<\/p>\n<h2><strong>3 Conclusion<\/strong><\/h2>\n<p>(1) L'augmentation du nombre de groupes EO dans la mol\u00e9cule de monom\u00e8re peut r\u00e9duire l'agr\u00e9gation bloquant l'oxyg\u00e8ne pendant le processus de photopolym\u00e9risation. Ceci est li\u00e9 au pi\u00e9geage de l'oxyg\u00e8ne et des radicaux peroxydes par les \u03b1-H de ce groupe et \u00e0 l'augmentation de la viscosit\u00e9 du syst\u00e8me.<\/p>\n<p>(2) Pour plusieurs TMPTA OE s\u00e9lectionn\u00e9s pour cette \u00e9tude, l'\u00e9nergie d'activation de l'\u00e9coulement du monom\u00e8re a peu d'effet sur l'agr\u00e9gation de la barri\u00e8re \u00e0 l'oxyg\u00e8ne. L'augmentation de la quantit\u00e9 d'OE dans le monom\u00e8re entra\u00eene une augmentation de son poids mol\u00e9culaire, ce qui entra\u00eene une augmentation de la viscosit\u00e9 du monom\u00e8re, qui \u00e0 son tour a un effet sur l'agr\u00e9gation de la barri\u00e8re \u00e0 l'oxyg\u00e8ne.<\/p>\n<p>&nbsp;<\/p>\n<h2><a href=\"https:\/\/longchangchemical.com\/fr\/product\/uv-functional-monomers\/\"><span style=\"color: #00ccff;\">Monom\u00e8re UV<\/span><\/a><strong> Produits de la m\u00eame s\u00e9rie<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 528.02pt;\" border=\"0\" width=\"704\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et5\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Polythiol\/Polym\u00e8recaptan<\/strong><\/td>\n<td class=\"et6\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et6\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-bmes-cas-3570-55-6\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-3570-55-6\/\"> Monom\u00e8re DMES<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Sulfure de bis(2-mercapto\u00e9thyle)<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">3570-55-6<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-bmpt-cas-131538-00-6\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-131538-00-6\/\"> Monom\u00e8re DMPT<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">THIOCURE DMPT<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">131538-00-6<\/td>\n<\/tr>\n<tr style=\"height: 31.00pt;\">\n<td class=\"et7\" style=\"height: 31.00pt; width: 191.50pt;\" width=\"255\" height=\"41\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-petmp-cas-7575-23-7\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/sinomer-petmp-cas-7575-23-7\/\"> Monom\u00e8re PETMP<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">7575-23-7<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-pm839-cas-72244-98-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-72244-98-5\/\"> PM839 Monom\u00e8re<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Polyoxy(m\u00e9thyl-1,2-\u00e9thanediyl)<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">72244-98-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et5\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Monom\u00e8re monofonctionnel<\/strong><\/td>\n<td class=\"et10\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et11\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-hema-cas-868-77-9\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/hema-monomer-cas-868-77-9\/\"> Monom\u00e8re HEMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de 2-hydroxy\u00e9thyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">868-77-9<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-hpma-cas-27813-02-1\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/hpma-monomer-cas-27813-02-1\/\"> Monom\u00e8re HPMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de 2-hydroxypropyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">27813-02-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-thfa-cas-2399-48-6\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/thfa-monomer-cas-2399-48-6\/\"> Monom\u00e8re THFA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Acrylate de t\u00e9trahydrofurfuryle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">2399-48-6<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/hdcpa-monomer-cas-79637-74-4\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/hdcpa-monomer-cas-79637-74-4\/\"> HDCPA Monom\u00e8re<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Acrylate de dicyclopent\u00e9nyle hydrog\u00e9n\u00e9<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">79637-74-4<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/dcpma-monomer-cas-30798-39-1\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/dcpma-monomer-cas-30798-39-1\/\"> Monom\u00e8re DCPMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de dihydrodicyclopentadi\u00e9nyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">30798-39-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/dcpa-monomer-cas-12542-30-2\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/dcpa-monomer-cas-12542-30-2\/\"> Monom\u00e8re DCPA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Acrylate de dihydrodicyclopentadi\u00e9nyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">12542-30-2<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/dcpema-monomer-cas-68586-19-6\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/dcpema-monomer-cas-68586-19-6\/\"> Monom\u00e8re DCPEMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de dicyclopentenyloxy\u00e9thyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">68586-19-6<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-dcpeoa-cas-65983-31-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/dcpeoa-monomer-cas-65983-31-5\/\"> Monom\u00e8re DCPEOA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Acrylate de dicyclopentenyloxy\u00e9thyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">65983-31-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/np-4ea-monomer-cas-50974-47-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/np-4ea-monomer-cas-50974-47-5\/\"> Monom\u00e8re NP-4EA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">(4) nonylph\u00e9nol \u00e9thoxyl\u00e9<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">50974-47-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\">Monom\u00e8re LA<\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Acrylate de laurier \/ Acrylate de dod\u00e9cyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">2156-97-0<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-thfma-monomer-cas-2455-24-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/thfma-monomer-cas-2455-24-5\/\"> Monom\u00e8re THFMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de t\u00e9trahydrofurfuryle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">2455-24-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/phea-monomer-cas-48145-04-6\/\"><span style=\"color: #00ccff;\"> Monom\u00e8re PHEA<\/span><\/a><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">ACRYLATE DE 2-PH\u00c9NOXY\u00c9THYLE<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">48145-04-6<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/142-90-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/142-90-5\/\"> Monom\u00e8re LMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de lauryle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">142-90-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/ida-monomer-cas-1330-61-6\/\"> Monom\u00e8re IDA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Acrylate d'isod\u00e9cyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">1330-61-6<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/iboma-cas-7534-94-3\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/iboma-cas-7534-94-3\/\"> Monom\u00e8re IBOMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate d'isobornyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">7534-94-3<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/iboa-monomer-cas-5888-33-5\/\"> Monom\u00e8re IBOA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Acrylate d'isobornyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">5888-33-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/eoeoea-monomer-cas-7328-17-8\/\"> EOEOEA Monom\u00e8re<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Acrylate de 2-(2-\u00c9thoxy\u00e9thoxy)\u00e9thyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">7328-17-8<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et5\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Monom\u00e8re multifonctionnel<\/strong><\/td>\n<td class=\"et10\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et11\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-dpha-cas-29570-58-9\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/dpha-monomer-cas-29570-58-9\/\"> Monom\u00e8re DPHA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">29570-58-9<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/-di-tmpta-cas-94108-97-1\/\"> Monom\u00e8re DI-TMPTA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">T\u00c9TRAACRYLATE DE DI(TRIM\u00c9THYLOLPROPANE)<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">94108-97-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et5\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Acrylamide monom\u00e8re<\/strong><\/td>\n<td class=\"et10\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et11\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-acmo-cas-5117-12-4\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/acmo-monomer-cas-5117-12-4\/\"> Monom\u00e8re ACMO<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">4-acryloylmorpholine<\/td>\n<td class=\"et12\" style=\"width: 90.55pt;\" width=\"120\">5117-12-4<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et5\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Monom\u00e8re di-fonctionnel<\/strong><\/td>\n<td class=\"et10\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et11\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/cas-25852-47-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-25852-47-5\/\">Monom\u00e8re PEGDMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Dim\u00e9thacrylate de poly(\u00e9thyl\u00e8ne glycol)<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">25852-47-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/tpgda-cas-42978-66-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/tpgda-cas-42978-66-5\/\"> Monom\u00e8re TPGDA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Diacrylate de tripropyl\u00e8ne glycol<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">42978-66-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/tegdma-cas-109-16-0\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/tegdma-cas-109-16-0\/\"> Monom\u00e8re TEGDMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Dim\u00e9thacrylate de tri\u00e9thyl\u00e8ne glycol<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">109-16-0<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/po2-npgda-cas-84170-74-1\/\"><span style=\"color: #00ccff;\"> Monom\u00e8re PO2-NPGDA<\/span><\/a><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Propoxylate de diacrylate de n\u00e9opentyl\u00e8ne glycol<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">84170-74-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/pegda-monomer-cas-26570-48-9\/\"> Monom\u00e8re PEGDA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Diacrylate de poly\u00e9thyl\u00e8ne glycol<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">26570-48-9<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-pdda-phthalate-diethylene-glycol-diacrylate\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/phthalate-diethylene-glycol-diacrylate\/\"> Monom\u00e8re PDDA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Phtalate diacrylate de di\u00e9thyl\u00e8ne glycol<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/npgda-cas-2223-82-7\/\"> Monom\u00e8re NPGDA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Diacrylate de n\u00e9opentyle et de glycol<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">2223-82-7<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-13048-33-4\/\"> Monom\u00e8re HDDA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Diacrylate d'hexam\u00e9thyl\u00e8ne<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">13048-33-4<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><a title=\"https:\/\/longchangchemical.com\/product\/-eo4-bpada-cas-64401-02-1\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/eo4-bpada-cas-64401-02-1\/\"><span style=\"color: #00ccff;\"> Monom\u00e8re EO4-BPADA<\/span><\/a><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">DIACRYLATE DE BISPH\u00c9NOL A \u00c9THOXYL\u00c9 (4)<\/td>\n<td class=\"et14\" style=\"width: 90.55pt;\" width=\"120\">64401-02-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-eo10-bpada-monomer-cas-64401-02-1\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/eo10-bpada-monomer-cas-64401-02-1\/\"> EO10-BPADA Monom\u00e8re<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">DIACRYLATE DE BISPH\u00c9NOL A \u00c9THOXYL\u00c9 (10)<\/td>\n<td class=\"et15\" style=\"width: 90.55pt;\" width=\"120\">64401-02-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-egdma-cas-97-90-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/egdma-monomer-cas-97-90-5\/\"> EGDMA Monom\u00e8re<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Dim\u00e9thacrylate d'\u00e9thyl\u00e8ne glycol<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">97-90-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/dpgda-monomer-cas-57472-68-1\/\"> Monom\u00e8re DPGDA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Di\u00e9noate de dipropyl\u00e8ne glycol<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">57472-68-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-bis-gma-cas-1565-94-2\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/sinomer-bis-gma-cas-1565-94-2\/\"> Monom\u00e8re Bis-GMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de glycidyle de bisph\u00e9nol A<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">1565-94-2<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et5\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Monom\u00e8re trifonctionnel<\/strong><\/td>\n<td class=\"et10\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et11\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/tmptma-cas-3290-92-4\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/tmptma-cas-3290-92-4\/\"> Monom\u00e8re TMPTMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Trim\u00e9thacrylate de trim\u00e9thylolpropane<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">3290-92-4<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/tmpta-cas-15625-89-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/tmpta-cas-15625-89-5\/\"> Monom\u00e8re TMPTA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Triacrylate de trim\u00e9thylolpropane<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">15625-89-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/peta-cas-3524-68-3\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/peta-cas-3524-68-3\/\"> Monom\u00e8re PETA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">3524-68-3<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-gpta-g3pota-cas-52408-84-1\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/gpta-g3pota-cas-52408-84-1\/\"> GPTA ( G3POTA ) Monom\u00e8re<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">TRIACRYLATE DE GLYC\u00c9RYLE ET DE PROPOXY<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">52408-84-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/eo3-tmpta-cas-28961-43-5\/\"> Monom\u00e8re EO3-TMPTA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Triacrylate de trim\u00e9thylolpropane \u00e9thoxyl\u00e9<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">28961-43-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et5\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Monom\u00e8re photor\u00e9sistant<\/strong><\/td>\n<td class=\"et10\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et11\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/ipama-monomer-cas-297156-50-4\/\"> Monom\u00e8re IPAMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de 2-isopropyl-2-adamantyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">297156-50-4<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/ecpma-monomer-cas-266308-58-1\/\"> ECPMA Monom\u00e8re<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de 1 \u00e9thylcyclopentyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">266308-58-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-adama-cas-16887-36-8\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/adama-monomer-cas-16887-36-8\/\"> Monom\u00e8re ADAMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de 1-Adamantyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">16887-36-8<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et5\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Monom\u00e8re de m\u00e9thacrylates<\/strong><\/td>\n<td class=\"et10\" style=\"width: 246.30pt;\" width=\"328\"><\/td>\n<td class=\"et11\" style=\"width: 90.55pt;\" width=\"120\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-tbaema-cas-3775-90-4\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/tbaema-monomer-cas-3775-90-4\/\"> Monom\u00e8re TBAEMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de 2-(Tert-butylamino)\u00e9thyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">3775-90-4<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-n-bma-n-butyl-methacrylate-cas-97-88-1\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/n-bma-n-butyl-methacrylate-cas-97-88-1\/\"> Monom\u00e8re NBMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de n-butyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">97-88-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-mema-cas-6976-93-8\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/mema-monomer-cas-6976-93-8\/\"> Monom\u00e8re MEMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de 2-m\u00e9thoxy\u00e9thyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">6976-93-8<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-i-bma-cas-97-86-9\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/i-bma-monomer-cas-97-86-9\/\"> Monom\u00e8re i-BMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate d'isobutyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">97-86-9<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-ehma-cas-688-84-6\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/chma-monomer-cas-101-43-9\/\"> Monom\u00e8re EHMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de 2-\u00e9thylhexyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">688-84-6<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/egdmp-monomer-cas-22504-50-3\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/egdmp-monomer-cas-22504-50-3\/\"> Monom\u00e8re EGDMP<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">Bis(3-mercaptopropionate) d'\u00e9thyl\u00e8ne glycol<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">22504-50-3<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-eema-cas-2370-63-0\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/eema-monomer-cas-2370-63-0\/\"> Monom\u00e8re EEMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">2-m\u00e9thoxy\u00e9thyle 2-m\u00e9thylprop-2-\u00e9noate<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">2370-63-0<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-dmaema-cas-2867-47-2\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/dmaema-monomer-cas-2867-47-2\/\"> Monom\u00e8re DMAEMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de N,M-dim\u00e9thylamino\u00e9thyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">2867-47-2<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/deam-monomer-cas-105-16-8\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/deam-monomer-cas-105-16-8\/\"> Monom\u00e8re DEAM<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de di\u00e9thylamino\u00e9thyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">105-16-8<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-chma-cas-101-43-9\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/chma-monomer-cas-101-43-9\/\"> Monom\u00e8re CHMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de cyclohexyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">101-43-9<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/bzma-monomer-cas-2495-37-6\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/bzma-monomer-cas-2495-37-6\/\"> Monom\u00e8re BZMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate de benzyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">2495-37-6<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/bddmp-monomer-cas-92140-97-1\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/bddmp-monomer-cas-92140-97-1\/\"> Monom\u00e8re BDDMP<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">1,4-Butanediol Di(3-mercaptopropionate)<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">92140-97-1<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-bddma-cas-2082-81-7\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/bddma-monomer-cas-2082-81-7\/\"> Monom\u00e8re BDDMA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">1,4-Butanedioldim\u00e9thacrylate<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">2082-81-7<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-ama-cas-96-05-9\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/ama-monomer-cas-96-05-9\/\"> Monom\u00e8re AMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate d'allyle<\/td>\n<td class=\"et16\" style=\"width: 90.55pt;\" width=\"120\">96-05-9<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/-aaem-cas-21282-97-3\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/aaem-monomer-cas-21282-97-3\/\"> Monom\u00e8re AAEM<\/a><\/span><\/td>\n<td class=\"et17\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate d'ac\u00e9tylac\u00e9toxy\u00e9thyle<\/td>\n<td class=\"et17\" style=\"width: 90.55pt;\" width=\"120\">21282-97-3<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et18\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><strong>Monom\u00e8re d'acrylates<\/strong><\/td>\n<td class=\"et19\" style=\"width: 336.85pt;\" colspan=\"2\" width=\"449\"><\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/iba-monomer-cas-106-63-8\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/iba-monomer-cas-106-63-8\/\"> Monom\u00e8re IBA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Acrylate d'isobutyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">106-63-8<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/ema-monomer-cas-97-63-2\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/ema-monomer-cas-97-63-2\/\"> Monom\u00e8re EMA<\/a><\/span><\/td>\n<td class=\"et9\" style=\"width: 246.30pt;\" width=\"328\">M\u00e9thacrylate d'\u00e9thyle<\/td>\n<td class=\"et9\" style=\"width: 90.55pt;\" width=\"120\">97-63-2<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/dmaea-monomer-cas-2439-35-2\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/dmaea-monomer-cas-2439-35-2\/\"> Monom\u00e8re DMAEA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Acrylate de dim\u00e9thylamino\u00e9thyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">2439-35-2<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/deaea-monomer-cas-2426-54-2\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/deaea-monomer-cas-2426-54-2\/\"> Monom\u00e8re DEAEA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">2-(di\u00e9thylamino)\u00e9thyl prop-2-\u00e9noate<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">2426-54-2<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/cha-monomer-cas-3066-71-5\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/cha-monomer-cas-3066-71-5\/\"> Monom\u00e8re CHA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">Prop-2-\u00e9noate de cyclohexyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">3066-71-5<\/td>\n<\/tr>\n<tr style=\"height: 15.50pt;\">\n<td class=\"et7\" style=\"height: 15.50pt; width: 191.50pt;\" width=\"255\" height=\"20\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" title=\"https:\/\/longchangchemical.com\/product\/bza-monomer-cas-2495-35-4\/\" href=\"https:\/\/longchangchemical.com\/fr\/product\/bza-monomer-cas-2495-35-4\/\"> Monom\u00e8re BZA<\/a><\/span><\/td>\n<td class=\"et8\" style=\"width: 246.30pt;\" width=\"328\">prop-2-\u00e9noate de benzyle<\/td>\n<td class=\"et8\" style=\"width: 90.55pt;\" width=\"120\">2495-35-4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>How buyers usually evaluate UV monomers and resin systems<\/h2>\n<p>Most successful UV formulations are built by choosing the backbone first and then tuning the reactive monomer package around the substrate, cure method, and end-use stress. That usually produces a more stable result than choosing materials by viscosity or price alone.<\/p>\n<ul>\n<li><strong>Start from the final property target:<\/strong> hardness, flexibility, adhesion, and shrinkage rarely point to exactly the same raw-material package.<\/li>\n<li><strong>Screen the reactive package as a whole:<\/strong> oligomer, monomer, and photoinitiator choices interact strongly in UV systems.<\/li>\n<li><strong>Use viscosity as a tool, not the only decision rule:<\/strong> the easiest-processing material is not always the one that performs best after cure.<\/li>\n<li><strong>Check the real substrate:<\/strong> plastic, metal, label film, gel systems, and coatings can reward very different polarity and cure-density balances.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-184-cas-947-19-3\/\">CHLUMINIT 184<\/a>:<\/strong> A classic free-radical benchmark for fast surface cure in many UV systems.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> A valuable comparison point when lower yellowing or TPO-replacement discussions matter.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/hpma-monomer-cas-27813-02-1\/\">CHLUMICRYL HPMA<\/a>:<\/strong> Useful when more polarity and adhesion support are needed in the reactive package.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/iboa-monomer-cas-5888-33-5\/\">CHLUMICRYL IBOA<\/a>:<\/strong> A strong low-viscosity monomer reference when hardness and good flow both matter.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Can one UV monomer or resin solve every formulation problem?<\/strong><br \/>Usually no. Commercially strong formulas depend on how several components work together to balance cure, adhesion, flow, and durability.<\/p>\n<p><strong>Why should monomers be screened together with oligomers?<\/strong><br \/>Because monomers can change viscosity, cure rate, shrinkage, and substrate behavior enough to alter the final ranking of the same backbone resin.<\/p>\n<p><!-- lc-commercial-end --><\/p>\n<h2><strong><b>Contactez-nous d\u00e8s maintenant !<\/b><\/strong><\/h2>\n<h4><strong><b>Si vous avez besoin de COA, MSDS ou TDS, veuillez remplir vos coordonn\u00e9es dans le formulaire ci-dessous, nous vous contacterons g\u00e9n\u00e9ralement dans les 24 heures. Vous pouvez \u00e9galement m'envoyer un courriel <span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a><\/span> pendant les heures de travail ( 8:30 am to 6:00 pm UTC+8 Mon.~Sat. ) ou utilisez le chat en direct du site web pour obtenir une r\u00e9ponse rapide.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"<p>1.2 Sample preparation and testing The monomer and initiator were weighed accurately, where the monomer was not purified, and mixed uniformly with a magnetic stirrer. UV-DSC was used to perform<\/p>","protected":false},"author":1,"featured_media":5414,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5797","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the effect of UV monomer on UV-curable oxygen blocking? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"1.2 Sample preparation and testing The monomer and initiator were weighed accurately, where the monomer was not purified, and mixed uniformly with a mag...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/fr\/effect-of-uv-monomer-on-uv-curable-oxygen-blocking\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the effect of UV monomer on UV-curable oxygen blocking? 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