A New Visible Light Sensitive Photoinitiator System for the Cationic Polymerization of Epoxides

被引:104
作者
Crivello, James V. [1 ]
机构
[1] Rensselaer Polytech Inst, Dept Chem & Chem Biol, Troy, NY 12180 USA
关键词
cationic polymerization; initiators; irradiation; photopolymerization; ring-opening polymerization; BENZOINE DERIVATIVES; PHOTOPOLYMERIZATION; DIARYLIODONIUM; SALT; OXIDE;
D O I
10.1002/pola.23203
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
This communication reports the development of an efficient three-component visible light sensitive photoinitiator system for the cationic ring-opening photo-polymerization of epoxide monomers and epoxide functional oligomers. The photoinitiator system consists of camphorquinone in combination with a benzyl alcohol to generate free radicals by the absorption of visible light. Subsequently, the radicals participate in the free radical chain induced decomposition of a diaryliodonium salt. The resulting strong Bronsted acid derived from this process catalyzes the cationic ring-opening polymerization of a variety of epoxide substrates. (C) 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 866-875, 2009
引用
收藏
页码:866 / 875
页数:10
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