Synthesis, structure, and properties of branched polymethacrylates

被引：19

作者：

Kurmaz, S. V. ^{[1
]}

Grachev, V. P. ^{[1
]}

Kochneva, I. S. ^{[1
]}

Perepelitsina, E. O. ^{[1
]}

Estrina, G. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Moscow 142432, Russia

来源：

POLYMER SCIENCE SERIES A | 2007年 / 49卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/S0965545X07080044

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 methacrylate: branching agent: chain growth regulator optimal ratios that allow the synthesis of branched polymethacrylates via the crosslinking free-radical copolymerization under the regime of conventional or catalytic chain transfer have been estimated. Relationships between the molecular-mass characteristics of the copolymers, their content of intact C=C bonds, the composition of the starting monomer mixture, and the structure of the branching agent and polymer chain growth regulator have been established. The rheological properties of the branched MMA-based copolymers have been studied. It has been shown that the copolymers are characterized by a weaker dependence of reduced viscosity on the polymer concentration in solution than that for the linear PMMA. The diffusion-sorption behavior of the branched polymethacrylates is determined by the content of the branching agent in them.

引用

页码：884 / 895

页数：12

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