Title:	Orientational order parameter measurements of discotic liquid crystal
Authors:	Kaur, Supreet Raina, K.K. Kumar, Sandeep Pratibha, R.
Keywords:	Book Chapter infrared Spectoscopy
Issue Date:	24-Apr-2014
Publisher:	American Institute of Physics
Citation:	AIP Conference Proceedings Vol. 1591, 2014, p180-182
Abstract:	The IR dichroism technique is a convenient method which can be used to measure the molecular order parameter corresponding to the IR bands exclusively present in the disc –like molecules in discotic liquid crystal (DLC). To measure orientational order parameter, homeotropic alignment of discotic liquid crystal was attained by slow cooling of sample from isotropic phase on untreated flat CaF2 substrate. The homeotropic alignment thus achieved was found to be thermodynamically stable in the discotic mesophase. IR spectra were recorded at different temperatures for the DLC. The order parameter was calculated by comparing the spectra of discotic phase with that of the isotropic phase. Order parameter has been presented as function of temperature for different significant IR bands present in the DLC.
Description:	Open Access, Book chapter Proceedings of the 58th DAE Solid State Physics Symposium 2013. held at Thapar University, Patiala, Punjab, India, from 17–21 December 2013. Edited by Chitra Murli , D. Bhattacharyya and S. C. Gadkari
URI:	http://hdl.handle.net/2289/6176
ISBN:	978-0-7354-1225-5
Alternative Location:	http://adsabs.harvard.edu/abs/2014AIPC.1591..180K http://dx.doi.org/10.1063/1.4872536
Copyright:	(2014) by the American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Appears in Collections:	Research Papers (SCM)

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.