화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals, Vol.517, 81-84, 2010
Thermodynamic Functions of a Liquid Crystal through Density Measurements
Thermodynamic functions of a material are determined using ultrasonic measurements coupled with volumetric measurements at different temperatures. It is also possible to determine some of these thermodynamic functions using only volumetric measurements. In the present study, these different parameters have been determined using only volumetric measurements in the case of a liquid crystal, namely, Butyl-p-(p-ethoxy-phenoxy carbonyl)-phenyl carbonate (BEPCP)at different temperatures. Variations in various parameters with respect to temperature have been discussed in the light of the results obtained. The variation of the properties is analyzed on the basis of Frenkal's heterophase fluctuation theory.