PHOTO-POLYMERIZATION OF METHYL-METHACRYLATE INITIATED BY SULFUR-DIOXIDE

被引：15

作者：

GHOSH, P

CHAKRABORTY, S

机构：

[1] Plastics and Rubber Technology Division, Department of Applied Chemistry, Calcutta University, Calcutta

来源：

EUROPEAN POLYMER JOURNAL | 1979年 / 15卷 / 02期

关键词：

D O I：

10.1016/0014-3057(79)90198-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In catalytic concentrations (10-5-10-4 mol l-1) sulphur dioxide induces polymerization of MMA, particularly on photoactivation. The effective initiating species appears to be the monomer-SO2 complex rather than free SO2. A mechanism involving biradical initiation by decomposition of the initiating species, linear propagation in two directions, and significant termination of growing chains by chain transfer with initiating species has been suggested. The initiator transfer constant is 1.6 at 40°. © 1979.

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页码：137 / 140

页数：4

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