Local motions in side-chain liquid crystalline polymers. A thermally stimulated currents study

被引：23
|
作者：
Mano, JF [1 ]
Ramos, JJM [1 ]
机构：
[1] Univ Tecn Lisboa, Ctr Quim Fis Mol, Inst Super Tecn, P-1096 Lisbon, Portugal
来源：
THERMOCHIMICA ACTA | 1998年 / 323卷 / 1-2期
关键词：
dielectric relaxations; compensation; local motions; non-cooperative motions; TSDC; beta-relaxation;
D O I：
10.1016/S0040-6031(98)00507-3
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The technique of thermally stimulated discharge currents (TSDC) has been used in order to study the sub-glass relaxation mechanisms in a series of side-chain liquid crystalline polymers. The results obtained suggest that these relaxations arise from local molecular motions in the mesogenic moiety. On the other hand, it was observed that there is no evidence for compensation phenomena associated with these relaxations. (C) 1998 Elsevier Science B.V. All rights reserved.
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页码：65 / 73
页数：9
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