Experimental Data on the Elasticities and Viscosities of Some Nematics

Abstract

We have measured the elastic ratios of two types of nematic liquid crystals: 4 methoxy 4’ azoxybenzene (N₄) and p-p’ dibutyl azoxybenzene (Dibab). The experiments involved the use of a light scattering technique and analysis of the scattered light versus the scattering angle. From these measurements and the results of other investigators (De Jeu¹), Prost²), Van Eck³)) we were able to extract and to discuss the coefficients of elasticity and viscosity.