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Nematic calamitic bisazobenzene liquid crystal: synthesis and mesomorphic properties of 1-methoxybutyloxy-4`-(4-phenylazo)azobenzene


Citation

Ab. Rahman, Mohamad Zaki and Abdbakar Salisu, Abusalam and Silong, Sidik and Rahman, Md Lutfor and Ahmad @ Ayob, Mansor (2009) Nematic calamitic bisazobenzene liquid crystal: synthesis and mesomorphic properties of 1-methoxybutyloxy-4`-(4-phenylazo)azobenzene. Asian Journal of Applied Sciences, 2 (2). pp. 177-183. ISSN 1996-3343

Abstract / Synopsis

A new 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 calorimetry and polarizing optical microscopy. The rod-shaped molecule 1- methoxybutyloxy-4’-(4-phenylazo)azobenzene was prepared by diazotization of 4-phenylazoaniline, coupling with phenol and subsequent etherification of 1-Bromobutyloxy-4’-(4-phenylazo) azobenzene in methanol. The presence of nematic mesophase was confirmed by the textures.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.3923/ajaps.2009.177.183
Publisher: Knowledgia Review, Malaysia
Keywords: Liquid crystal; Calamatic; Nematic phase; Bisazobenzene; Thermotropic
Depositing User: Najwani Amir Sariffudin
Date Deposited: 16 Oct 2013 12:39
Last Modified: 23 Oct 2017 16:47
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3923/ajaps.2009.177.183
URI: http://psasir.upm.edu.my/id/eprint/15789
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