A. A. Salisu and M. Z. Ab. Rahman and S. Silong and Md Lutfor Rahman and M. 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 synthesised 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 |
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| Keyword: | Liquid crystal, Bisazobenzene, Nematic phase, Smectic phase, calamitic, Thermotropic |
| Subjects: | Q Science > QD Chemistry > QD1-999 Chemistry > QD241-441 Organic chemistry |
| Department: | SCHOOL > School of Science and Technology |
| Depositing User: | ADMIN ADMIN |
| Date Deposited: | 10 Aug 2011 14:49 |
| Last Modified: | 19 Oct 2017 11:50 |
| URI: | https://eprints.ums.edu.my/id/eprint/1431 |
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