Glass-transition temperature as a function of conversion in hyperbranched polymers obtained by self-condensing vinyl polymerization

被引：0
|
作者：
Liu, HW
Wilén, CE
Shi, WF
机构：
[1] Abo Akad Univ, Lab Polymer Technol, SF-20500 Turku, Finland
[2] Univ Sci & Technol China, Dept Polymer Sci & Engn, Hefei, Peoples R China
来源：
MACROMOLECULAR THEORY AND SIMULATIONS | 2002年 / 11卷 / 05期
关键词：
conversion; glass transition; hyperbranched; temperature;
D O I：
10.1002/1521-3919(20020601)11:5<459::AID-MATS459>3.0.CO;2-X
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Chain-end free volume theory is extended for studying the glass transition temperature (T-g) as a function of conversion in hyperbranched polymers T-g is found to have a non-linear inverse relationship to the molecular weight for polymers obtained by self condensing vinyl polymerization (SCVP). During the monomer conversion process T-g decreases with the increase in molecular weight (P) in the low conversion range, then levels off in the high conversion range.
引用
收藏
页码：459 / 461
页数：3
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