Dielectric Relaxation and Molecular Geometry in Nematic Mixtures

1 January 1988

journal article
liquid crystals
Published by Taylor & Francis in Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics

Vol. 154 (1) , 1-8
https://doi.org/10.1080/00268948808078717

Abstract

Four cyano-substituted liquid crystals of different length to width ratio have been added to a nematic basic mixture. Their influence on the dielectric relaxation process observed parallel to the nematic director was investigated in the frequency range from 0.1 to 100 kHz. The decrease of the relaxation frequency by increasing molecular length has been correlated to the molecular geometry as well as to the increasing activation energy.

Keywords

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