摘要
合成了两种大分子光引发剂PPI 1和PPI 2,紫外吸收行为均与4-BP相似,摩尔消光系数比4-BP高,且光解速率快。在不加助引发剂EDAB条件下引发单体HDDA聚合效率良好,对比PPI 1和PPI 2,随着吸光基团官能度(分子量)增大,聚合速率增加、最终转化率增高。将各自诱导单体PEGDA聚合的固化膜,在二氯甲烷溶液中浸泡5天后,PPI 1的萃取量是4-BP的44.5%,PPI 2的萃取量是4-BP的40%,说明PPI 1和PPI 2都是引发效率良好的低迁移光引发剂。
Two macromolecular photoinitiators PPI 1 and PPI 2 were synthesized and characterized.The results showed that the UV absorption behavior of PPI 1 and PPI 2 are similar to that of 4-BP,the molar extinction coefficient are higher,the rate of photodegradation are faster.Without the addition of EDAB,compared to PPI 1 and PPI 2,as the molecular weight(functionality)of photoinitiator increased,the polymerization rate increased and the final double bond conversion rate of HDDA increased.The extraction amount of film cured by PPI 1 was 44.5%than that of 4-BP,PPI 2 was 40%than that of 4-BP respectively,after immersed in CH 2Cl 2 solution for 5 days.
作者
郝亚娟
李经方
李东兵
杨金梁
聂俊
HAO Yajuan;LI Jingfang;LI Dongbing;YANG Jinliang;NIE Jun(Changzhou Photosensitive Materials Co.,Ltd.,Changzhou 213127,Jiangsu,P.R.China;Changzhou Institute of Advanced Materials,Beijing University of Chemical Technology,Changzhou 213164,Jiangsu,P.R.China)
出处
《影像科学与光化学》
CAS
2019年第5期445-455,共11页
Imaging Science and Photochemistry
基金
国家重点研发计划(2017YFB0307800)资助
关键词
光引发剂
二苯甲酮
大分子
photopolymerization
photoinitiator
macromolecular
