Sm A-Sm C tricritical point in TBBA and TBDA mixtures

Alapati, P. R. and Arulsankar, A. and Gogoi, B. and Ghosh, T. K. and Nagappa (2001) Sm A-Sm C tricritical point in TBBA and TBDA mixtures. Molecular Crystals and Liquid Crystals, 366. pp. 1913-1920. ISSN 1058-725X

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Abstract

Terephtal-bis-p-n-decylaniline (TBDA) exhibit a weakly first order Sin A - Sin C Phase Transition Whereas TBBA, a lower homologue of the same series, exhibit a second order Sin A - Sm C transition. In order to investigate the tricritical point (TCP) of Sm A - Sm C transition, a systematic study of binary mixtures of TBBA + TBDA are undertaken. DSC and polarizing thermal microscopy studies infer the TCP of the Sin A - Sin C Transition at the weight percent of 80.05 TBDA in TBBA. We report here a systematic study of the approach of TCP by DSC and density measurements as a function of temperature in few compositions of TBBA + TBDA on both sides of the tricritical point.

Item Type:	Article
Additional Information:	18th International Liquid Crystal Conference (ILCC2000), SENDAI, JAPAN, JUL 24-28, 2000
Uncontrolled Keywords:	first order transition; Sm A - SmC transition; tricritical point
Divisions:	Department of > Physics
Depositing User:	Harisha R uom
Date Deposited:	18 Jan 2020 06:31
Last Modified:	18 Jan 2020 06:31
URI:	http://eprints.uni-mysore.ac.in/id/eprint/10146

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