Early stages of interchange reactions in polymer blends

被引：1
|
作者：
Kudryavtsev, Yaroslav V. [1 ]
Chertovich, Alexander V.
Guseva, Darja V.
Litmanovich, Arkady D.
机构：
[1] Russian Acad Sci, AV Topchiev Petrochem Synth Inst, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119992, Russia
来源：
MACROMOLECULAR SYMPOSIA | 2007年 / 254卷
关键词：
blends; compatibilization; interchain exchange; Monte Carlo simulation; theory;
D O I：
10.1002/masy.200750829
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Simple models are studied for better understanding of the early stages of interchange reactions in polymer blends. For a homogeneous blend of homopolymers A and B, parameters of copolymer AB formed at the reaction beginning are explicitly calculated. it is shown that the analysis of the copolymer composition can help to establish the prevailing interchange mechanism. For a bilayer blend of immiscible homopolymers A and 13, the reactive compatibilization through interchange is studied by continual Monte Carlo modeling. The analysis of the local distribution in block length shows that the interdiffusion of blend components may start only after the formation of rather short copolymer blocks in the course of interchange.
引用
收藏
页码：188 / 195
页数：8
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