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以1,1,3-三甲基-3-苯基茚满为母体,通过傅克及羟基化反应合成了一种性能优异于传统单官能度小分子光引发剂的双官能度光引发剂。产物通过核磁共振波谱仪、傅里叶变换红外光谱仪进行结构鉴定,并将其性能与单官能度小分子裂解型光引发剂比较。结果表明,该种光引发剂紫外最大吸收较小分子光引发剂红移了约14 nm,固化成膜后其相对迁移率下降了约80%～90%,热稳定性提高,同时保持了小分子光引发剂的高引发效率,是一种性能优良的光引发剂。
Using 1,1,3-trimethyl-3-phenylindan as the precursor, a bifunctional photoinitiator with excellent performance as compared with traditional monofunctional small molecule photoinitiators was synthesized by Friedel-Crafts reaction. . The product was identified by NMR spectroscopy and Fourier transform infrared spectroscopy, and its performance was compared with the monofunctional small molecule cleavage photoinitiator. The results show that the photoinitiator UV absorption of smaller molecules red-shifted about 14 nm, the relative mobility decreased by about 80% to 90% after curing, the thermal stability increased, while maintaining a small High photoinitiator initiator efficiency, is a kind of excellent photoinitiator.