Thermal Study of Some Liquid Crystals

Abstract

Liquid crystals of the type p-phenylene-p-n-alkoxy benzoate have been prepared in the laboratory. The thermal study of compounds in done using four function MON-Q-derivatograph. The method suggested by Boerswa and later clarified by Garn was
adopted for thermal study. Using the area of DTA peak, the calibration
coefficient (g) values have been evaluated and discussed. The
transition temperatures of nematogenes having homologues were
measured and its correlation with number of carbon atoms in the
chain discussed.