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Main Title: Pressure and Isotropic-Nematic Transition Temperature of Model Liquid Crystals
Author(s): Hess, Siegfried
Su, Bin
Type: Article
Language Code: en
Abstract: The pressure in the gaseous, the isotropic liquid and nematic liquid crystalline states, as well as the isotropic-nematic transition temperature are calculated for a model system composed of non-spherical particles. The potential is a generalization of the Lennard-Jones interaction where the attractive part depends on the relative orientations of the particles and the vector joining their centers of mass. Point of departure is an augmented van der Waals approach. It involves a modified Carnahan-Starling expression associated with the repulsive part of the interaction, and an orientation dependent second virial coefficient, as well as the orientational distribution functions of a pair of particles, linked with the attractive part of the potential. In a high temperature approximation, and for a special choice of model parameters, results are presented and displayed graphically.
Issue Date: 1999
Date Available: 10-Nov-2018
DDC Class: 530 Physik
Subject(s): nematic liquid crystal
interaction potential
equation of state
Sponsor/Funder: DFG, SFB 448, Mesoskopisch strukturierte Verbundsysteme
Journal Title: Zeitschrift für Naturforschung A
Publisher: De Gruyter
Publisher Place: Berlin
Volume: 54
Issue: 10-11
Publisher DOI: 10.1515/zna-1999-10-1101
Page Start: 555
Page End: 569
EISSN: 1865-7109
ISSN: 0932-0784
Appears in Collections:Inst. Theoretische Physik » Publications

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