Variation of the entropy of the transition in nematic mixtures

Nagappa and Jagadish, K. N. and Mahadeva, J. and Naveenkumar, S. K. and Somashekar, R. (2001) Variation of the entropy of the transition in nematic mixtures. Molecular Crystals and Liquid Crystals, 366. pp. 2091-2098. ISSN 1058-725X

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Abstract

The temperature variation of orientational order parameter in binary mixtures of two nematic compounds viz P-(p-ethoxy-phenylazo) phenyl Valerate (EPPV) and N-(p-propoxybenzylidene)p-pentylaniline (PBPA) has been estimated using refractive index and density data. The higher order parameter <p(4)> has been estimated. Employing the Humphries-James-Luckhurst theory the entropy of the transition of the mixtures at different concentrations has been computed. It is observed that the increase in the value of entropy of the transition is associated with the increase in the pair potential of the molecules in the mixtures.

Item Type:	Article
Additional Information:	18th International Liquid Crystal Conference (ILCC2000), SENDAI, JAPAN, JUL 24-28, 2000
Uncontrolled Keywords:	order parameter; pair potential; entropy
Divisions:	Department of > Physics
Depositing User:	Harisha R uom
Date Deposited:	21 Jan 2020 05:33
Last Modified:	21 Jan 2020 05:33
URI:	http://eprints.uni-mysore.ac.in/id/eprint/10147

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