Viscosity coefficients of partially aligned nematic and nematic discotic liquid crystals

Harald Ehrentraut and Siegfried Hess
Phys. Rev. E 51, 2203 – Published 1 March 1995
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Abstract

The affine transformation model—formulated for ellipsoidal particles with axis ratio Q and previously used for the calculation of the viscous properties of nematic liquid crystals with perfect orientation order—is generalized to realistic uniaxial phases with imperfect order (Maier-Saupe order parmeter S<1). For the nematic liquid crystals N-(4-methoxybenzylidene)-4-(n-butyl)aniline (MBBA) and p-methoxy-p-n-butylazoxybenezene (N4) and some cyanobiphenyls (kCB and kOCB with k=5,8) a comparison of the theoretically obtained Miesowicz viscosities with experimental data is made.

  • Received 9 June 1994

DOI:https://doi.org/10.1103/PhysRevE.51.2203

©1995 American Physical Society

Authors & Affiliations

Harald Ehrentraut and Siegfried Hess

  • Institut für Theoretische Physik, Technische Universität Berlin, D-10623 Berlin, Germany

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Vol. 51, Iss. 3 — March 1995

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