Theory of Shear Thinning in Liquid Crystal Polymers, for the Lower Shear Rate Regime
A nemato-hydrodynamic theory of shear thinning in solutions of lyotropic nematic liquid crystal polymers(LCP) consisting of semi-flexible polymer molecules is developed for the lower shear rate regime. Generalized power law behavior and crossover behavior are derived between the viscosity and the shear rate.
KeywordsShear Rate Apparent Viscosity Liquid Crystal Polymer Crossover Behavior Hydrodynamic Permeability
- 1.A. Ciferri, W.R. Krigbaum and R.B. Meyer, Eds. of “Polymer Liquid Crystals”, (Academic Press, New York, London, 1982).Google Scholar
- 2.K.F. Wissbrum, Lecture Notes in Mathematics, Vol. 1063, pp.1, Ed. by J. L. Ericksen, (Springer, 1984).Google Scholar
- 3.S. Onogi and T. Asada, Rheology, Vol.I, pp.127, Eds. G. Astarita et al., (Plenum Press, New York, 1980).Google Scholar
- 4.Y. Yamazaki, A. Holz and S.F. Edwards, Phys. Rev. A.Google Scholar