Study of Acoustical Parameters of a Cholesteric Liquid Crystal and Toluene Solutions

Abstract

Acoustical parameters are the best tool to understand the molecular interaction of a solution of Cholesteric liquid crystal (CLC) and Toluene solvent. We have probed Acoustic Impedance (A), Adiabatic Compressibility ( Rao’s Constant, i.e., Molar sound velocity (R), Wada Constant, i.e., Molar compressibility (W) & Viscous relaxation time (T) of the solutions with varying Mole Fraction of Cholesteryl Acetate using an ultrasonic interferometer and Ostwald's viscometer. The measurements were made using an Ultrasonic interferometer at 1 MHz frequency. We have established that moderate molecular interactions are present in the systems.