双分子体系光敏引发剂

本文介绍了双分子体系光敏引发剂的二种引发机理,即芳香酮类在H—给予体存在的条件下,受光激发后,通过争取氢而产生自由基;咔唑类衍生物在卤代烃存在的条件下,通过电子转移产生自由基的引发机理,讨论了不同H—给予体和不同结构的咔唑类衍生物产生的自由基活性和引发效率的关系。

Bimolecular Photoinitiator

In this paper is proposed two kinds of initiating mechanism of bimolecular photoiniators, for free radical polymerization ie. in H-dont stimulated by irradiation, aromatic carbonyl compounds, produces radicals by means of abstracting hydrogen and in the presence of alkyl kalides NVC derivatives produces radical mechanisms by electronic transfer. As a result, it is this difference in NVC derivatives structure and H-dont accounts for their difference in radical activity and initiating efficiency.