DEPENDENCE OF COPOLYMER COMPOSITION UPON MOLECULAR-WEIGHT IN HOMOGENEOUS RADICAL COPOLYMERIZATION

被引：38

作者：

SEMCHIKOV, YD

SMIRNOVA, LA

KNYAZEVA, TY

BULGAKOVA, SA

SHERSTYANYKH, VI

机构：

[1] Chemistry Institute, N.I. Lobachevsky State University, Gorky

来源：

EUROPEAN POLYMER JOURNAL | 1990年 / 26卷 / 08期

关键词：

D O I：

10.1016/0014-3057(90)90162-W

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 the early stages of homogeneous radical copolymerizations of many vinyl monomers, deviation from the Mayo-Lewis classical scheme has been found. The copolymer composition depends on molecular weight, the samples being nonhomogeneous in composition. The phenomenon appears in a kinetic sense as the dependence of copolymer composition upon the concentration of a radical initiator or of a chain transfer agent. As shown by equilibrium dialysis and light scattering, the fact that the composition depends upon the molecular weight is explained by preferential sorption of one of the monomers by polymer chains, the quantity depending upon the molecular weight of copolymer. © 1990.

引用

页码：883 / 887

页数：5

共 19 条

[1] The mechanism of copolymerilzatlon [J].