TRANSITIONS AND MODRPHOLOGY OF MAIN-CHAIN LIQUID CRYSTALLINE POLYMERS WITH X-SHAPED MESOGENS

被引：0
|
作者：
吴薇
李自法
周其风
叶美玲
徐懋
机构：
[1] Academia Sinica
[2] Beijing 100080
[3] Beijing.
[4] Department of Chemistry
[5] Institute of Chemistry
[6] Peking University
[7] Polymer Physics Laboratory
[8] Zhengzhou
[9] Zhengzhou University
来源：
Chinese Journal of Polymer Science | 1994年 / 04期
基金：
中国国家自然科学基金;
关键词：
Liquid crystalline polymer; X-shaped mesogen; Transition; Morphology;
D O I：
暂无
中图分类号：
O631 [高分子物理和高分子物理化学];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The transitions and morphology of a series of main-chain liquid crystalline polymer with X-shaped mesogens were studied by means of DSC,SALS and polarizing microscopy techniques. Aneven-odd effect was observed for samples with different size of the substituents on the mesogenends. The isotropization process was similar to that of main-chain polymers with rod-likemesogens. No crystallization was detected for specimens cooling down from their isotropic meltstate. However two of the samples may crystallize in cooling process directly from the liquidcrystalline state.
引用
收藏
页码：337 / 344
页数：8
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