STUDY OF MOLECULAR-DYNAMICS OF A NEMATIC MAIN-CHAIN LIQUID-CRYSTALLINE POLYESTER BY DIELECTRIC-SPECTROSCOPY

被引：3
|
作者：
MUCHA, M [1 ]
BLUMSTEIN, A [1 ]
机构：
[1] UNIV MASSACHUSETTS,DEPT CHEM,LOWELL,MA 01854
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1994年 / 249卷
基金：
美国国家科学基金会;
关键词：
D O I：
10.1080/10587259408038656
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Dielectric spectroscopy was applied to study the molecular dynamics of a nematic main-chain liquid crystalline polyester using a Du Pont Dielectric Analyser. The dielectric measurements covered a frequency range from 0.03 to 100000Hz and a temperature range from -100 to 160 degrees C leading from the transition region up to the isotropic fluid region. Dielectricrelaxation processes alpha,beta,gamma and delta were observed and analysed. Apparent activation energies of the processes were calculated.
引用
收藏
页码：61 / 74
页数：14
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