Abstract
ABSTRACTThe compound 4 propyl paraethoxy phenyl cyclohexyl carboxylate (code name D302) is a member of a homologous series and exhibits liquid crystalline (nematic) behavior in the temperature range 48°C to 78°C. An experiment has been set up for conducting X-ray studies of liquid crystal samples at various temperatures. From X-ray studies conducted at different temperatures on D302, the apparent molecular length and inter-molecular distance and their temperature dependence have been determined. The variation of the orientational-order parameter <P2>xray has been determined from the intensities of the scanned X-ray photographs taken at different temperatures. The results have been compared with the<P2>opt values obtained by us from birefringence studies.
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