Preliminary Communication Dielectric relaxation in monotropic liquid crystals
作者:
E.I. Rjumstev,
A.P. Kovshik,
期刊:
Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 18,
issue 5
页码: 819-822
ISSN:0267-8292
年代: 1995
DOI:10.1080/02678299508036695
出版商: Taylor & Francis Group
数据来源: Taylor
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 (102-108Hz) 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.
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