THERMAL-PROPERTIES OF BLENDS OF POLY(ETHYLENE-TEREPHTHALATE) AND A LIQUID-CRYSTALLINE COPOLYESTER

被引：4
|
作者：
MEHTA, S
DEOPURA, BL
机构：
[1] Textile Technology Department, Indian Institute of Technology, New Delhi
来源：
POLYMER BULLETIN | 1991年 / 26卷 / 05期
关键词：
D O I：
10.1007/BF01032684
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A thermotropic liquid crystal copolyester (CHQ/BP/TA/IA; 40/10/40/10) (LCP), and melt blends of poly(ethylene terephthalate) (PET) with LCP have been studied for thermal transition and crystallization behaviour. The LCP has a mesophase transition (K --> M) in the temperature range of 295-315-degrees-C. The endothermic peak showing mesophase to Isotropic (M --> I) transition is observed around 420-degrees-C. These transitions are supported by hot stage polarizing microscopy. In blends of PET/LCP, the mesomorphic transition is observed at temperature around 314-degrees-C, along with the melting transition of PET around 274-degrees-C. The dynamic calorimetric measurements reveal that the two polymers are at least partially miscible.
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页码：571 / 578
页数：8
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