EFFECT OF SAMPLE HISTORY ON IONIC AGGREGATE STRUCTURES OF SULFONATED POLYSTYRENE IONOMERS

被引：27
|
作者：
HARA, M
JAR, P
SAUER, JA
机构：
[1] Department of Mechanics and Materials Science, Rutgers, The State University of New Jersey, Piscataway
来源：
POLYMER | 1991年 / 32卷 / 08期
关键词：
SULFONATED POLYSTYRENE IONOMERS; DIMETHYL FORMAMIDE; IONIC AGGREGATE STRUCTURES; DYNAMIC MECHANICAL MEASUREMENTS;
D O I：
10.1016/0032-3861(91)90417-H
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 effects of thermal treatment and of solvent (dimethyl formamide (DMF)) history on the ionic aggregate structures of lightly sulphonated polystyrene ionomers were studied by dynamic mechanical measurements. It was shown that thermal treatment of the ionomers with 2.5 mol% ion content enhanced cluster formation. It was also found that DMF worked as a 'dual' plasticizer that not only destroyed ionic aggregates but also decreased the T(g) of matrix materials. Thermal treatment of cast samples from DMF recovered ionic aggregate structures that were comparable to those seen in compression-moulded samples.
引用
收藏
页码：1380 / 1383
页数：4
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