Benzoylformamides as versatile photocaged bases for redox free radical photopolymerization

被引：3
作者：
Xu, Ruixin [1 ]
He, Minghui [2 ]
Yang, Jianwen [3 ]
机构：
[1] Shenzhen Polytech, Sch Media & Commun, Shenzhen 518055, Peoples R China
[2] South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China
[3] Sun Yat Sen Univ, Sch Mat Sci & Engn, DSAPM Lab, Guangzhou 510275, Guangdong, Peoples R China
来源：
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES | 2016年 / 15卷 / 11期
基金：
中国国家自然科学基金;
关键词：
ALPHA-OXOAMIDES; AMMONIUM-SALT; PHOTOINITIATORS; POLYMERIZATION; TETRAPHENYLBORATE; DERIVATIVES; SUPERBASE; LEDS;
D O I：
10.1039/c6pp00301j
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Benzoylformamides (BFAs) are proposed as photocaged bases for redox free radical photopolymerization (FRP). Initially the dissolving capacity of BFAs was evaluated. Besides our previously reported photo-latent anion polymerization, BFAs, as versatile photocaged bases, can not only initiate the FRP of acrylates unassisted, but also perform redox FRP in combination with a benzoyl peroxide initiator. We detail a model photopolymerization in the presence of BFA-dBA (N,N-dibenzyl-2-oxo-2-phenylacetamide) as the photocaged base. In combination with a benzoyl peroxide initiator, BFAs are able to initiate the amine-mediated redox photopolymerization of acrylates, and enhance the photopolymerization rate. Finally, we investigated the mechanism of the radical formation to initiate the redox FRP, as exemplified by BFA-dBA.
引用
收藏
页码：1442 / 1447
页数：6
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