DIELECTRIC-RELAXATION IN MONOTROPIC LIQUID-CRYSTALS

被引：3
作者：
RJUMSTEV, EI
KOVSHIK, AP
机构：
[1] Institute of Physics, St. Petersburg State University, St. Petersburg
来源：
LIQUID CRYSTALS | 1995年 / 18卷 / 05期
关键词：
D O I：
10.1080/02678299508036695
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A way of investigating dielectric relaxation phenomena occurring in the isotropic and liquid crystalline states by the use of monotropic mesogens is suggested. The application of common methods of dielectric spectroscopy in the radio frequency range (10(2)-10(8) Hz) to strongly supercooled samples for the investigation of the amorphous Liquid and low temperature monotropic liquid crystalline states is described. The possibility of experimental separation and investigation of the different dipole polarization mechanisms responsible for the dielectric properties of the monotropic mesogen 4-cyano-3-chlorophenyl-4-hexyl-3-chlorobiphenyl-4'-carboxylate (CChEC), whose molecules have longitudinal and normal permanent dipole moment components, is established.
引用
收藏
页码：819 / 822
页数：4
相关论文
共 12 条
[1]  
Druon C., Wacrenier J.M., Molec. Crystals Liq. Crystals, 88, (1982)
[2]  
Parneix J.P., Legrand C., Dfcobster D., Molec. Crystals Liq. Crystals, 98, (1983)
[3]  
Axmann A., Z Naturf. (A), 21, (1966)
[4]  
Parneix J.P., Chapoton A., Molec. Crystals Liq. Crystals, 78, (1981)
[5]  
Cole R., J. Chem. Phys, 23, (1955)
[6]  
Chapoton A., Ravalitera G., Choquet M., Vandopre D., Gengembre L., Rev. Phys. Appl, 10, (1975)
[7]  
Rjumstev E.L., Rotijan T.A., Et al., Opt. Spektrosk, 41, (1976)
[8]  
Maier W., Meier G., Z. Naturf. (A), 16, (1961)
[9]  
Tsvetkov V.N., Vestn. Leningr. Gos. Univ, 4, (1970)
[10]  
J Rjumtsev E.I., Polushin S.G., Kovshik A.P., Rotinjan T.A., Tsvetkov V.N., Dokl. Akad. Nauk SSSR, 224, (1979)
12