Orientation elastic deformations in polymer liquid crystals induced by electric fields: aromatic polyesters

被引：0
|
作者：
机构：
[1] Tsvetkov, V.N.
[2] Tsvetkov, N.V.
[3] Andreeva, L.N.
[4] Bilibin, Yu A.
[5] Skorokhodov, S.S.
来源：
Tsvetkov, V.N. | 1600年 / 29期
关键词：
Aromatic polymers - Electric field effects - Liquid crystals - Nematic liquid crystals - Thermotropic liquid crystals;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Elastic deformations induced by electric fields were investigated in nematic layers of two thermotropically mesogenic aromatic polyesters, with different structures of flexible spacers, and of their two low molecular weight anologues. It was shown by means of the polarizing microscopy that, in a planar-concave homeotropic layer of a nematic with negative dielectric anisotropy, bend deformation in the direction of an electric field and splay deformations in directions normal to it are induced by this field. The threshold electrical potentials of structural transitions and the values of dielectric anisotropy of these nematics were determined.
引用
收藏
相关论文
共 50 条
12345