SYNTHESIS AND CHARACTERIZATION OF POLY(OXY-1,4-PHENYLENEOXYCARBONYL-1,4-PHENYLENEOXYPOLYMETHYLENE)S

被引：6

作者：

JIN, JI

CHO, YI

SOHN, BH

KANG, CS

机构：

[1] Chemistry Department, Korea University, Seoul, 136-701

来源：

POLYMER | 1993年 / 34卷 / 14期

关键词：

LIQUID CRYSTALLINE POLYMERS; MAIN CHAIN POLYESTERS; POLY(OXY-1,4-PHENYLENEOXYCARBONYL-1,4-PHENYLENEOXYPOLYMETHYLENE);

D O I：

10.1016/0032-3861(93)90629-O

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 multistep synthetic route for the preparation of a series of poly(oxy-1,4-phenyleneoxycarbonyl-1,4-phenyleneoxypolymethylene)s having a varying length of the polymethylene spacer from the di- to the hexamethylene group is reported. The polymers prepared were characterized particularly for their liquid crystalline properties by differential scanning calorimetry, wide-angle X-ray diffractometry and observation of their textures on a polarizing optical microscope. All the polymers, with the exception of the trimethylene polymer, formed the nematic phase in melt. They exhibited the well known odd-even effect at melting temperature as well as at isotropization temperature.

引用

页码：3019 / 3024

页数：6

共 38 条

[11]

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