Synthesis and properties of thermotropic copoly(ester imide)s

被引：10

作者：

Dong, DW ^{[1
]}

Zhang, R ^{[1
]}

Li, G ^{[1
]}

Ni, YS ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Polymer Phys Lab, Changchun 130022, Peoples R China

来源：

POLYMER JOURNAL | 1999年 / 31卷 / 01期

关键词：

copoly(ester imide); thermotropic liquid crystal; nematic phase; thermal condensation; N,N '-hexane-1,6-diylbis(trimellitimide); p-hydroxybenzoic acid;

D O I：

10.1295/polymj.31.37

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 dicarboxylic acid, N,N'-hexane-1,6-diylbis(trimellitimide), was prepared by the reaction of trimellitic anhydride with 1,6-hexane diamine. From the diacid, a series of copoly(ester imide)s had been synthesized by thermal condensation with p-hydroxybenzoic acid and diphenols with different structures. Properties of the resulting copoly(ester imide)s were characterized by polarized light microscopy, differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD). Most of the copoly(ester imide)s formed a nematic phase over a wide temperature range above their melt. The effects of the copoly(ester imide)s composition and the structures of diphenols on the temperature related to liquid crystalline transition were investigated.

引用

页码：37 / 41

页数：5

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