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Studies on Temperature Dependent Birefringence and Molecular Orientations of Smectic-A and Smectic-C Phases

Journal: International Journal of Science and Research (IJSR) (Vol.6, No. 2)

Publication Date:

Authors : ; ;

Page : 263-268

Keywords : Birefringence; layer spacing; Molecular orientation x-ray studies; Optical studies Smectic Phases;

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Two or more multi-component system of N-Cetyl-N, N, N, trimethly ammonium bromide (CTAB), Cetyl alcohol + Orthophosphoric acid (CA+H3PO4) exhibits an induced smectic phases, such as smectic-A, smectic-C and smectic-E phases sequentially when the specimen is cooled from its isotropic melt. These phases have been characterized by using DSC, Optical microscopic techniques and X-ray studies. The molecular tilt and birefringence have been discussed in the region of smetic-A and smectic-C phases respectively at different temperature.

Last modified: 2021-06-30 17:48:27