STUDIES ON THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS:POLY (ARYLENE TEREPHTHALATECO-HEXAMETHYLENE TEREFHTHALATE)

ZHANG Hongzhi; WANG Pingping; FENG Xinde

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STUDIES ON THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS:POLY (ARYLENE TEREPHTHALATECO-HEXAMETHYLENE TEREFHTHALATE)

Papers | Updated：2021-06-21

- STUDIES ON THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS:POLY (ARYLENE TEREPHTHALATECO-HEXAMETHYLENE TEREFHTHALATE)
- STUDIES ON THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS:POLY (ARYLENE TEREPHTHALATECO-HEXAMETHYLENE TEREFHTHALATE)
- 高分子科学（英文版） 1988年6卷第2期页码：123-128
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- 纸质出版：1988-06-20
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ZHANG Hongzhi, WANG Pingping, FENG Xinde. STUDIES ON THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS:POLY (ARYLENE TEREPHTHALATECO-HEXAMETHYLENE TEREFHTHALATE)[J]. 高分子科学（英文版）, 1988,6(2):123-128.

ZHANG Hongzhi, WANG Pingping, FENG Xinde. STUDIES ON THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS:POLY (ARYLENE TEREPHTHALATECO-HEXAMETHYLENE TEREFHTHALATE)[J]. 1988, 6(2): 123-128.
ZHANG Hongzhi, WANG Pingping, FENG Xinde. STUDIES ON THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS:POLY (ARYLENE TEREPHTHALATECO-HEXAMETHYLENE TEREFHTHALATE)[J]. 高分子科学（英文版）, 1988,6(2):123-128. DOI：

ZHANG Hongzhi, WANG Pingping, FENG Xinde. STUDIES ON THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS:POLY (ARYLENE TEREPHTHALATECO-HEXAMETHYLENE TEREFHTHALATE)[J]. 1988, 6(2): 123-128. DOI：

摘要

A series of copolyesters based on terephthaloyl chloride

hexamethylene glycol and hydroquinone or chlorohydroquinone were prepared. The copolymers showed composition-dependent liquid crystalline properties as verified by visual observation of stir-opalescence

polarizing microscope and DSC. The copolyesters with aromatic diol contents over a certain extent (x≥0.2) were thermotropic with wide liquid crystalline temperature ranges. Comparing with the copolyesters based on butylene glycol or ethylene glycol

the minimum fraction of aromatic diol(x value) used to get the liquid crystallinity for all these copolyesters is around 0.2 regardless of the chain lengths of aliphatic glycols.1-NMP studies revealed that copolyesters have microstructure of block sequence distribution and the mesogenic segments shorter than triad with three phenyl nuclei will not provide the liquid crystallinity.

Abstract

A series of copolyesters based on terephthaloyl chloride

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