Thermal characterization of induced mesomorphism in binary mixture of cholesteryl and poly ethylene glycol

Govindaiah, T. N. and Sreepad, H. R. and Nagappa (2013) Thermal characterization of induced mesomorphism in binary mixture of cholesteryl and poly ethylene glycol. Molecular Crystals and Liquid Crystals, 575 (1). pp. 22-29. ISSN 1563-5287

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Abstract

We report the results of our studies on optical and thermal properties of two compounds viz., cholesteryl linolenate and poly ethylene glycol exhibits very interesting liquid crystalline-induced lamellar smectic phases at large range of concentrations and temperature. The mixture with lower and higher concentrations of poly ethylene glycol (PEG) exhibits an Iso-N*-SmA-SmE- Cry, sequentially when the specimen is cooled from its isotropic phase. But concentrations from 20% to 40% of the mixture exhibit a SmC* phase. Different phases were observed in the mixture and are identified using X-ray and microscopic techniques. The temperature variation of optical anisotropy and helical pitch measurements are also discussed.

Item Type:	Article
Uncontrolled Keywords:	Binary mixtures, Isotropic phase, Mesomorphic phasis, Microscopic techniques, Smectic phasis, Temperature variation, Polyols, Optical and thermal properties, Ethylene glycol, Non-mesogenic, Thermal characterization
Subjects:	D Physical Science > Physics
Divisions:	Department of > Physics
Depositing User:	Arshiya Kousar Library Assistant
Date Deposited:	19 Sep 2019 07:29
Last Modified:	19 Sep 2019 07:30
URI:	http://eprints.uni-mysore.ac.in/id/eprint/8008

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