One-component bimolecular photoinitiating systems, 2 - Thioxanthone acetic acid derivatives as photoinitiators for free radical polymerization

被引：178

作者：

Aydin, M

Arsu, N

Yagci, Y ^{[1
]}

机构：

[1] Tech Univ Istanbul, Dept Chem, TR-34640 Istanbul, Turkey

[2] Yildiz Tech Univ, Dept Chem, TR-34210 Istanbul, Turkey

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2003年 / 24卷 / 12期

关键词：

electron transfer; initiators; photopolymerization; radical polymerization; thioxanthone;

D O I：

10.1002/marc.200300019

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The compounds 2-thioxanthone-thioacetic acid and 2-(carboxymethoxy)thioxanthone, bimolecular photoinitiators for free radical polymerization, are synthesized and characterized. Their capability to act as initiators for the polymerization of methyl methacrylate was examined. The postulated mechanism is based on the intermolecular electron-transfer reaction of the excited photoinitiator with the sulfur or oxygen atom of the ground state of the respective photoinitiator followed by decarboxylation. The resulting alkyl radicals initiate the polymerization.

引用

页码：718 / 723

页数：6

共 21 条

[1]

BARTHOMOLEW DR, 1971, J CHEM SOC CHEM COMM, P3482

[2]

BERNER G, 1978, J OIL COLOUR CHEM AS, V61, P105

[3] PHOTOCHEMISTRY AND PHOTOPOLYMERIZATION STUDY ON 2-ACETOXY AND METHYL-2-ACETOXY DERIVATIVES OF THIOXANTHONE AS PHOTOINITIATORS [J].