Regulating photochemical behavior and property of imidazolium-based water soluble polysiloxane macromolecular photoinitiators by anions
作者:Guowei Zhang、Shengling Jiang、Yanjing Gao、Fang Sun
DOI:10.1016/j.jphotochem.2018.06.028
日期:2018.9
Five polysiloxane macromolecular photoinitiators containing different anion structures with ionic liquid character ([Si-di2959Im][X] (X = Br−, Ph4B−, TsO−, NO3−, CF3COO−)) were designed and synthesized. The effect of different anion structures on photochemical behavior, phoinitiating mechanism, the water solubility, thermal property and volatility of the photoinitiators was systematically explored
含有不同的阴离子的结构与离子液体字符五聚硅氧烷大分子光引发剂([Si的di2959Im] [X](X = Br的-中,Ph 4乙-,TSO -,NO 3 -,CF 3 COO - )),设计并合成。系统地研究了不同阴离子结构对光引发剂光化学行为,光引发机理,水溶性,热性质和挥发性的影响。[Si-di2959Im] [X]的消光系数高,高达40,210 M -1 cm -1,和对2-羟基-1- [4-(2-羟基乙氧基)苯基] -2-甲基丙烷-1-酮的相似的光引发活性和机理(Irgacure 2959),而TPGDA体系的光聚合诱导期由[Si]引发-di2959Im] [X](X =苯基4乙-,CF 3 COO -和NO 3)是由2959的Irgacure此外,[Si的di2959Im] [X]具有不仅良好的水溶性略比短,但还具有所需的热性能和低的饱和蒸气压。[Si的di2959Im] [X]的水溶解度的顺序为Ph