SYNTHESIS AND CHARACTERIZATION OF NEW THERMOTROPIC LIQUID-CRYSTALLINE POLYMERS WITH PAIRED MESOGENS CONTAINING AZOBENZENE UNIT - POLY(MALONIC ESTER)S

被引：18

作者：

HAN, YK

KIM, DY

KIM, YH

机构：

[1] Polymer Chemistry Laboratory, Korea Institute of Science and Technology, Seoul, 130-650

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1992年 / 30卷 / 06期

关键词：

THERMOTROPIC LIQUID CRYSTALLINE MALONIC ESTERS; THERMOTROPIC LIQUID CRYSTALLINE POLY(MALONIC ESTER)S; PAIRED MESOGENS; MONOTROPIC NEMATIC TEXTURE; SPACER LENGTH EFFECT; REVERSIBLE OPTICAL DATA STORAGE; TRANS-CIS PHOTOISOMERIZATION;

D O I：

10.1002/pola.1992.080300625

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

New thermotropic liquid crystalline poly(malonic ester)s with two symmetrical mesogenic units (paired mesogens) were prepared by the polycondensation of 1,6-dibromohexane and novel malonic ester compounds with different flexible ethyleneoxy spacer lengths linked to azobenzene group. All the prepared malonic esters and the resulting polymers exhibited monotropic liquid crystallinity with a nematic texture. The length of the spacer had influence on the temperature of phase transition of them. A possibility of application of the prepared polymers to reversible optical information storage media was also identified through a trans-cis isomerization of azobenzene by UV irradiation.

引用

页码：1177 / 1185

页数：9

共 15 条

[1] LIQUID-CRYSTALLINE PHOSPHAZENES - HIGH POLYMERIC AND CYCLIC TRIMERIC SYSTEMS WITH AROMATIC AZO SIDE GROUPS [J].