Department of Physics, Post-graduate government college, Sector-11, Chandigarh, India
Online published on 21 November, 2013.
Cholesteryl oleyl carbonate (COC) is an organic chemical, an carbonate ester of cholesterol and oleyl alcohol with carbonic acid. It is a liquid crystal material forming cholesteric liquid crystals with helical structure. It is a transparent liquid, or a soft crystalline material with melting point around 20°C. It can be used with cholesteryl nonanoate and cholesteryl benzoate in some thermochromic liquid crystals.For this certain important physical parameters such as adiabatic compressibility, specific acoustic impedance, relative association, intermolecular free length, relaxation time, free volume, Rao’s constant, Wada’s constant etc. are evaluated using ultrasonic velocity, density and viscosity of Cholesteryl oleyl carbonate at different temperatures.
