Composition dependence of polymerization-induced phase separation of 2-chlorostyrene/polystyrene mixtures

被引：13
|
作者：
Okada, M [1 ]
Inoue, G
Ikegami, T
Kimura, K
Furukawa, H
机构：
[1] Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China
[2] Tokyo Inst Technol, Dept Polymer Chem, Meguro Ku, Tokyo 1528552, Japan
[3] Tokyo Univ Agr & Technol, Dept Organ & Polymer Mat Chem, Tokyo 1848588, Japan
来源：
POLYMER | 2004年 / 45卷 / 12期
关键词：
polymerization; induced phase separation; morphology; electron microscopy;
D O I：
10.1016/j.polymer.2004.03.086
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Dynamics of phase separation induced by polymerization of 2-chlorostyrene in the presence of polystyrene was studied by an scanning electron microscope and a time-resolved light scattering instrument with varying initial monomer composition theta in the range from 0.4 to 0.6. Phase-separation rate increased with increasing theta or temperature. Phase being rich in poly(2-chlorostyrene) formed droplets initially and these droplets coagulated to form continuous domains at low temperatures. A maximum was found in the initial-composition dependence of the time when morphological change from droplets to continuous domains occurred. Qualitative discussion was made for the effects of initial composition change on morphological change of poly(2-chlorostyrene)-rich phase. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4315 / 4321
页数：7
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