咔唑类化合物作为近可见光照射下自由基和阳离子聚合的光引发剂。

Carbazole-based compounds as photoinitiators for free radical and cationic polymerization upon near visible light illumination.

机构信息

Institut de Science des Matériaux de Mulhouse IS2M - UMR CNRS 7361 - UHA, 15, rue Jean Starcky, 68057 Mulhouse Cedex, France.

Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France.

出版信息

Photochem Photobiol Sci. 2018 May 16;17(5):578-585. doi: 10.1039/c7pp00400a.

DOI:10.1039/c7pp00400a

PMID:29620093

Abstract

Six new carbazole based compounds (Ca1-Ca6) are synthesized and proposed as high performance photoinitiators with iodonium salt (iod) and/or an amine (EDB) for both the free radical polymerization (FRP) of acrylates and the cationic polymerization (CP) of epoxides upon near UV and visible light exposure using light emitting diodes (LEDs) @385 nm and @405 nm. Excellent polymerization initiating abilities are found and high final reactive function conversions are acquired. A full picture of the involved photochemical mechanisms is given.

摘要

六种新的咔唑类化合物（Ca1-Ca6）被合成并被提议作为高效光引发剂，与碘鎓盐（iod）和/或胺（EDB）一起用于在近紫外和可见光照射下使用发光二极管（LED）@385nm 和 @405nm 下的丙烯酸酯的自由基聚合（FRP）和环氧化物的阳离子聚合（CP）。发现具有优异的聚合引发能力，并获得高的最终反应性功能转化率。给出了所涉及的光化学机理的全貌。