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.
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页码：61 / 74
页数：14
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