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近年来由于高聚物光固化技术在成象、光刻、信息存贮、涂料和印刷工业上的广泛应用,引起了人们对光敏引发聚合反应的日益重视。新的光引发体系如:安息香及其醚类、二苯酮、硫杂蒽酮、芳基香豆素酮等和叔胺类的复合体系、重氮盐、碘鎓盐、硫鎓盐和芳酰磷氧化物等不断涌现。高技术的发展进一步促使人们致力于寻找新的高效的光敏引发体系。 Foote等曾研究过缺电子敏化剂9,10-二氰蒽(DCA)光敏氧化富电子烯烃的反应,认为系按下列电子转移机制进行。
In recent years, due to the extensive application of polymer photo-curing technology in imaging, photolithography, information storage, coating and printing industries, people have drawn increasing attention to the photo-induced polymerization reaction. New photoinitiation systems such as benzoin and its ethers, benzophenone, thioxanthone, arylcoumarinone and the like and tertiary amines, diazonium salts, iodonium salts, sulfonium salts and aromatic Acyl phosphorus oxides continue to emerge. The development of high technology further urges people to find new and efficient photoinitiator systems. Foote et al. Studied the photosensitization of electron-rich olefins by the electron-sensitizer 9,10-dicyanoanthracene (DCA). It was considered that the electron transfer mechanism was followed.