Sidik Silong and Abdulsalam Abubakar Salisu and M. Z A Rahman and Rahman, Md Lutfor and Mansor Ahmad (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
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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. © 2009 Science Publications.
| Item Type: | Article |
|---|---|
| Keyword: | Bisazobenzene, Calamitic, Liquid crystal, Nematic phase, Smectic phase |
| Subjects: | Q Science > QC Physics > QC1-999 Physics > QC170-197 Atomic physics. Constitution and properties of matter |
| Department: | SCHOOL > School of Science and Technology |
| Depositing User: | ADMIN ADMIN |
| Date Deposited: | 16 Mar 2011 13:33 |
| Last Modified: | 19 Oct 2017 15:03 |
| URI: | https://eprints.ums.edu.my/id/eprint/1561 |
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