夺氢型BCIM增感体系引发二甲基丙烯酸酯类单体的光聚合动力学  

Photocuring Kinetic of Dimethacrylate Monomers Initiated by Type II BCIM Sensitization System

作　　者：丁艳花 邹应全[1] DING Yan-hua;ZOU Ying-quan(College of Chemistry,Beijing Normal University,Beijing 100875,China)

机构地区：[1]北京师范大学化学学院,北京100875

出　　处：《广州化工》2021年第1期15-19,共5页GuangZhou Chemical Industry

基　　金：湖北固润科技股份有限公司科研经费项目。

摘　　要：采用实时红外研究了聚乙二醇(400)二甲基丙烯酸酯和乙氧基化双酚A二甲基丙烯酸酯单体在复合光引发体系BCIM/EMK/NPG中的光聚合动力学。考察了复合光引发体系各组分的不同配比、光源、复合光引发体系浓度对两种单体的聚合动力学影响。结果表明:当BCIM、EMK、NPG质量比为2:1:1时,单体的聚合性能最好;两种单体的光聚合性能均在汞灯光源下最好,LED@365 nm次之,LED@400 nm最差;复合光引发体系浓度越大,两种单体的双键转化率越高,聚合速率越快。Photopolymerization kinetics of polyethylene glycol(400)dimethacrylate and ethoxylated bisphenol A dimethacrylate monomers initiated by BCIM/EMK/NPG composite photo-initiator system were investigated by real-time infrared spectroscopy.The effects of the concentration of the composite photo-initiated system,UV-light source,the different proportions of the components in the composite photo-initiated system,and two different difunctional monomers on the polymerization kinetics were studied.The results indicated that when the mass ratio of the composite photoinitiator system BCIM/EMK/NPG was 2:1:1,the monomer had the best polymerization performance.The photopolymerization properties of the two monomers were the best under the mercury lamp light source,and LED@365 nm was the second,LED@400 nm was the worst.The double bond conversion rate and the polymerization rate of monomer 9G and BPE-500 increased with the increase of the concentration of the composite photo-initiated system.

关 键 词：邻氯代六芳基双咪唑 光聚合性能 实时红外 感光干膜 

分 类 号：O63[理学—高分子化学]