Twist grain boundary phases in the binary mixtures of smectic and cholesteryl compounds

Mahadeva, J. and Nagappa and Rajashekara Prasad, K. and Alapati, P. R. (2001) Twist grain boundary phases in the binary mixtures of smectic and cholesteryl compounds. Molecular Crystals and Liquid Crystals, 365. 1783+-1790. ISSN 1058-725X

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Abstract

The binary mixture of Terephthal-bis-p-n-hexadecylaniline (TB16A) and cholesteryl nonanoate (CN) exhibits I - N* - TGB(A)- TGB(c*)- Sm A - Sm I - Sm F - Sm. G - K Phases in the concentration region between 95 to 98% of TB 16A at higher temperature range. The 90% of TB 16A exhibits I - N* - TGB(A) - TGB(C) - Sm A - Sin I - Sm F - K phases. The mixtures of concentration between 50 to 80% of TB 16A exhibits I - Sm A - Sm I - K phases. The frustrated blue phase is also observed in the mixtures of lower concentration of TB 16A in CN at higher temperature. Optical, DSC and X-ray studies were carried out for the identification of the different phases. The phase diagram of the Chen-Lubensky model in this context is discussed.

Item Type:	Article
Additional Information:	18th International Liquid Crystal Conference (ILCC2000), SENDAI, JAPAN, JUL 24-28, 2000
Uncontrolled Keywords:	TGB phase; binary mixtures; smectic and cholesteryl compounds
Divisions:	Department of > Physics
Depositing User:	Harisha R uom
Date Deposited:	21 Jan 2020 05:52
Last Modified:	21 Jan 2020 06:03
URI:	http://eprints.uni-mysore.ac.in/id/eprint/10148

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