可聚合大分子光引发剂的合成及其引发二缩三丙二醇二丙烯酸酯光聚合动力学的研究  

Synthesis and kinetics of macrophotoinitiators for photopolymerization of TPGDA

作　　者：肖浦[1] 吴刚强[1] 史素青[1] 聂俊[2] 

机构地区：[1]武汉大学化学与分子科学学院生物医用高分子材料教育部重点实验室,武汉430072 [2]北京化工大学材料科学与工程学院,北京100029

出　　处：《辐射研究与辐射工艺学报》2007年第1期19-24,共6页Journal of Radiation Research and Radiation Processing

基　　金：国家自然科学基金(50473024);湖北省科技攻关(2004AA303B03)资助

摘　　要：以2-羟基-2-甲基-1-苯基丙酮(2-Hydroxy-2-methyl-1-phenyl propan-1-one,HMPP)、甲苯-2,4-二异氰酸酯(Toluene-2,4-diisocyanate,TDI)、一种双酚A环氧丙烯酸酯(6104)为原料,合成了三种可聚合大分子光引发剂1HMPP-TDI-6104,2HMPP-TDI-6104和3HMPP-TDI-6104。用红外光谱监测反应过程,用光差动热分析法(Photo-Differential scanning calorimetry,Photo-DSC)研究了这三种可聚合大分子光引发剂引发二缩三丙二醇二丙烯酸酯(Tripropylene glycol diacrylate,TPGDA)光聚合动力学,比较了它们与小分子光引发剂HMPP的引发效果,考察了引发剂浓度对TPGDA光聚合动力学的影响。结果表明,这三种可聚合大分子光引发剂与HMPP的性能相差不大。最大反应速率对应的转化率、单体最终转化率均随引发剂浓度增大,达最大反应速率所需时间短。Macrophotoinitiators of 1HMPP-TDI-6104,2HMPP-TDI-6104,3HMPP-TDI-6104, were synthesized with 2-Hydroxy-2-methyl-l-phenyl-propan-1-one （HMPP）, toluene-2,4- diisocynate （TDI）, and 6104. The products were analyzed by FTIR spectroscopy. Kinetics for photopolymerization of tripropylene glycol diacrylate （TPGDA） induced respectively by the macrophotoinitiators was studied by photo-DSC, and the initiate effect was compared with HMPP. The results showed that the initiate effects of the macrophotoinitiators were almost the same with HMPP. The polymerization rate and the final conversion were increased by increasing the initiator concentration.

关 键 词：可聚合大分子光引发剂 光聚合 动力学 光差动热分析法 

分 类 号：O434.2[机械工程—光学工程] Q323.5[理学—光学]