Mechanically induced electric polarization in polymer dispersed nematic liquid crystal films

被引：1
|
作者：
Rosu, C [1 ]
Manaila-Maximean, D [1 ]
机构：
[1] Univ Politehn Bucuresti, Dept Phys, Bucharest 77206, Romania
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2000年 / 351卷
关键词：
liquid crystals; hysteresis; polymers; mechanical stretching;
D O I：
10.1080/10587250008023276
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We obtained polymer dispersed nematic liquid crystal films E7/PMMA. In order to induce anisotropy and consequently electrical polarization, the films have been hot stretched and pressed. We studied the dependence of the polarization upon temperature, frequency and amplitude of the applied electric field. High values of the order of muC/cm(2), have been obtained. The frequency dependence of the polarization indicates relaxation times of the order of milliseconds.
引用
收藏
页码：269 / 277
页数：9
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