Rotational Diffusion in the Nematic Phase: Part I
A theoretical expression for the rotational diffusion coefficient in the nematic phase is derived in this part of the work. The calculations are based on the time dependent angular distribution function which is obtained by solving a Vlasov-type equation including the effect of molecular collisions, A perturbation technique of the Bhatnager-Gross-Krook (BGK) model is used for the collision term and for the linearization of the equation.
KeywordsPrefer Direction Nematic Liquid Crystal Perturbation Technique Nematic Phase Elliptical Integral
Unable to display preview. Download preview PDF.
- 1.A. A. Vlasov, Many-Particale Theory, Moscow-Leningrad, 1950, trans. AEC-tr-3406, Washington, D.C., 1959. Earlier paper: A. A. Vlasov, J. Exp. Theoret. Phys. (USSR), 8, 291(1938)Google Scholar
- 4.W. Maier and A. Saupe, Zeitschrift fur Naturforschung 14A, 511(1954).Google Scholar
- 5.G. W. Gray, “Molecular Structure and Properties of Liquid Crystals”, (Academic Press Inc., N. Y., N. Y., 1969).Google Scholar