Determination of the transfer constant of α-thioglycerol in methyl methacrylate free-radical polymerization

被引:6
作者
Fernandez-Garcia, M [1 ]
Delgue, M [1 ]
Madruga, EL [1 ]
机构
[1] CSIC, Inst Ciencia & Tecnol Polimeros, E-28006 Madrid, Spain
关键词
D O I
10.1002/macp.1997.021981210
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Using the Mayo and the Clay-Gilbert method, the transfer rate coefficient of alpha-thioglycerol (TG) was determined at 50 degrees C for the polymerization of methyl methacrylate (MMA) in a 3 mol.L-1 tetrahydrofuran solution using different amounts of 2,2'-azoisobutyronitrile (AIBN) as initiator. The transfer rate coefficient was found to be independent of the initiator concentration and higher by a factor of 1.6 when obtained according to the Clay-Gilbert method compared to the Mayo method.
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页码:3883 / 3892
页数:10
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