GLASS-TRANSITION AND CRYSTALLIZATION OF POLY(VINYL ALCOHOL)-G-POLY(METHYL METHACRYLATE) GRAFT-COPOLYMERS

被引：10
|
作者：
YAO, YM [1 ]
LIU, LZ [1 ]
LI, H [1 ]
FANG, TR [1 ]
ZHOU, EL [1 ]
机构：
[1] CHINESE ACAD SCI,CHANGCHUN INST APPL CHEM,POLYMER PHYS LAB,CHANGCHUN 130022,PEOPLES R CHINA
来源：
POLYMER | 1994年 / 35卷 / 14期
关键词：
GLASS TRANSITION; CRYSTALLIZATION; GRAFT COPOLYMER;
D O I：
10.1016/0032-3861(94)90430-8
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 glass transition behaviour, microphase separation morphology and crystallization of poly(vinyl alcohol)-g-poly(methyl methacrylate) graft copolymers (PVA-g-PMMA) were studied. A lamellar microphase separation morphology was formed, even for a copolymer containing only 28 wt% PVA. An unusual glass transition behaviour of the copolymer was found: the glass transition temperature (T(g) of PMMA microphase did not move towards the lower T(g) of PVA, but increased markedly to as much as 20 K higher than the T(g) of the PMMA homopolymer. The crystallization of the PVA microphase of the copolymer was also investigated.
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页码：3122 / 3126
页数：5
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