Calamitic bisazobenzene liquid crystal series: Synthesis and mesomorphic properties of 1-methoxyalkyloxy-4′-(4-phenylazo)azobenzene

Mohamad Zaki Ab. Rahman, and Abdulsalam Abubakar Salisu, and Sidik Silong, and Md Lutfor Rahman, and Mansor Ahmad, (2011) Calamitic bisazobenzene liquid crystal series: Synthesis and mesomorphic properties of 1-methoxyalkyloxy-4′-(4-phenylazo)azobenzene. Liquid Crystals, 38 (4). pp. 423-431. ISSN 0267-8292

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Abstract

A new series of calamitic liquid crystal materials with bisazobenzene moieties as a core has been synthesized and characterised by spectroscopic methods. The mesomorphic properties were investigated by differential scanning calorimetry, optical polarising microscopy and X-ray diffraction. The presence of nematic and smectic A mesophases was confirmed by the textures and X-ray diffraction studies. All the compounds are found to show enantiotropic mesophase behaviour. The compounds show a significant photoisomerisation under appropriate light irradiation.

Item Type: Article
Uncontrolled Keywords: Bisazobenzene, Calamitic, Liquid crystal, Nematic phase, Smectic phase, Thermotropic
Subjects: ?? QD901-999 ??
Divisions: SCHOOL > School of Sustainable Agriculture
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 29 Oct 2012 09:47
Last Modified: 20 Oct 2017 06:12
URI: http://eprints.ums.edu.my/id/eprint/5255

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