Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule

Citation

Silong, Sidik and Salisu, Abdulsalam Abubakar and Ab. Rahman, Mohamad Zaki and Rahman, Lutfor and Ahmad @ Ayob, Mansor (2009) Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule. American Journal of Applied Sciences, 6 (4). pp. 561-564. ISSN 1546-9239; ESSN: 1554-3641

Abstract

A new hybrid calamitic liquid crystal material with rod-shape bisazobenzene moieties as a core has been synthesized and characterized by spectroscopic methods. The mesomorphic properties were investigated by differential scanning colorimetry, polarizing optical microscopy and X-Ray diffraction. The rod-shaped molecule 1- methoxyhexyloxy-4`-(4-phenylazo)azobenzene was prepared by diazotization of 4-phenylazoaniline, coupling with phenol and subsequent etherification of 1-Bromohexyloxy-4`-(4-phenylazo)azobenzene in methanol. The presence of enantiotropic nematic and smectic A mesophases were confirmed by the textures and X-Ray diffraction.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science
DOI Number:	https://doi.org/10.3844/ajassp.2009.561.564
Publisher:	Science Publications
Keywords:	Liquid crystal; Bisazobenzene; Calamitic; Nematic phase; Smectic phase
Depositing User:	Najwani Amir Sariffudin
Date Deposited:	16 Oct 2013 04:37
Last Modified:	30 Nov 2017 08:19
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3844/ajassp.2009.561.564
URI:	http://psasir.upm.edu.my/id/eprint/15788
Statistic Details:	View Download Statistic

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