硫杂蒽酮类光产碱剂的合成及其光化学性能研究

doi:10.7517/j.issn.1674-0475.2017.01.070

摘要/Abstract

摘要：

以硫代水杨酸和苯硫乙酸为原料，通过两步法成功合成了一种新型的单组分硫杂蒽酮类光产碱剂。利用核磁氢谱、核磁碳谱和高分辨率质谱对光产碱的结构进行了表征，通过稳态光解及电子自旋共振波谱等对光解产物进行了系统研究。该光产碱剂在400 nm附近有较强的吸收，可有效引发巯基-环氧光聚合，其引发活性优于文献报道的高效光产碱体系。

关键词: 光产碱剂, 光致脱羧, 巯基-环氧光聚合, 光固化

Abstract:

A novel photobase generator (PBG) was synthesized in two steps using thiosalicylic acid and (phenylthio)acetic acid as starting materials. The structure of the PBG was characterized by ¹HNMR, ¹³CNMR and high-resolution mass spectrometer. The photolysis mechanism was systematically studied via steady photolysis and electron spin resonance tests. The PBG showed a strong absorption at around 400 nm. Under the 365~500 nm irradiation, the PBG could efficiently induce thiol-epoxy photopolymerization. The initiation efficiency of the PBG was higher than that of the reported efficient PBG initiation system in the literature.

Key words: photobase generator, photoinduced decarboxylation, thiol-epoxy photopolymerization, photocuring

沈为真, 刘晓亚, 刘仁, 李治全. 硫杂蒽酮类光产碱剂的合成及其光化学性能研究[J]. 影像科学与光化学, 2017, 35(1): 70-79.

SHEN Weizhen, LIU Xiaoya, LIU Ren, LI Zhiquan. Synthesis and Photochemical Properties of Photobase Generators Containing Thioxanthone[J]. Imaging Science and Photochemistry, 2017, 35(1): 70-79.

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