丙烯酸酯单体的邻氯代六芳基双咪唑复合光引发聚合动力学研究  

Photo-polymerization kinetics of acrylate monomer initiated by bis [2-(ochlorophenyl)-4,5-diphenylimidazole] compound photo-initiator system

作　　者：朱晓丹[1] 王克敏[1] 钱晓春 聂俊[3] 马贵平[3] 

机构地区：[1]常州大学材料科学与工程学院,常州213164 [2]常州强力电子新材料有限公司,常州213011 [3]北京化工大学常州先进材料研究院,常州213164

出　　处：《辐射研究与辐射工艺学报》2012年第5期268-273,共6页Journal of Radiation Research and Radiation Processing

基　　金：常州科技局国际合作项目(CZ20110007);常州市微电子工业化学材料研发与制备公共技术平台(CZ2010003)对本项目的资助

摘　　要：利用紫外光谱对2,2'-二邻氯苯基-4,4',5,5'-四苯基-1,2'–二咪唑(BCIM)光引发剂开展研究。以BCIM为光引发剂、4,4-二(N,N'-二甲基-氨基)苯甲酮(EMK)为光增感剂,N-苯基甘氨酸(NPG)为供氢体,通过实时红外光谱(RT-IR)研究丙烯酸酯单体在复合光引发体系中的光聚合动力学。结果表明:引发剂浓度越大,聚合速率越快,双键转化率越高;复合光引发体系中,当质量比m(BCIM):m(EMK):m(NPG)=10:5:5时,引发效率最高(96.7%);双官能度单体引发效率较三官能度的好,双键转化率可达90%以上;聚合速率随光照强度的增强而变快。Photo-polymerization kinetics of acrylate monomer initiated by bis [2-（ochlorophenyl）-4,5-di- phenylimidazole] compound photo-initiator system were investigated by real-time infrared （RT-IR）, while NMR and UV was used for characterization, respectively. In synthetic system BCIM was used as photo-initiator, N, N-bis（diethylamino） benzophenone （EMK） was used as photo-sensitizer and N-phenylglycine （NPG） was used as hy- drogen donor. The kinetics was determined by real-time infrared （RT-IR）. The results showed that the polymerization rate and the double bond conversion increased with the initiator concentration while the mass ratio m（BCIM）： m（EMK）： rn（NpG） was 10： 5： 5. The optimum initiate efficiency of 96.7% and the polymerization rate of above 90% with diacry- late monomer were better than that with triacrylate monomer. It was also found that the polymerization rate could in- crease with light intensity.

关 键 词：光聚合 邻氯代六芳基双咪唑 动力学 实时红外 

分 类 号：O64[理学—物理化学] TQ577[理学—化学]