MISCIBILITY AND ENTHALPY RELAXATIONS IN POLYSULFONE CARBOXYLATED POLYSULFONE BLENDS

被引：8
|
作者：
LAU, WWY
JIANG, YQ
TAN, PPK
机构：
[1] Department of Chemical Engineering, National University of Singapore, 0511
来源：
POLYMER INTERNATIONAL | 1993年 / 31卷 / 02期
关键词：
MISCIBILITY; POLYSULFONE CARBOXYLATED POLYSULFONE BLENDS;
D O I：
10.1002/pi.4990310207
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Phase behavior in polysulfone-carboxylated polysulfone (PSf-CPSf) blends was studied by glass transition observations in conjunction with enthalpy relaxation technique. Miscibility in all proportions was detected in blends where CPSf has a degree of carboxylation (DC, i.e. number of carboxyl groups per repeat unit) less than about 1.3. Partial miscibility was detected in blends for DC > 1-4 and up to DC = 1.9, probably as a result of decreasing intermolecular interactions with increase in DC.
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页码：163 / 167
页数：5
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