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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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