Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule
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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Science Publications
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/15788/1/ajassp.2009.561.564.pdf |
| _version_ | 1825945689222283264 |
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| author | Silong, Sidik Salisu, Abdulsalam Abubakar Ab. Rahman, Mohamad Zaki Rahman, Lutfor Ahmad @ Ayob, Mansor |
| author_facet | Silong, Sidik Salisu, Abdulsalam Abubakar Ab. Rahman, Mohamad Zaki Rahman, Lutfor Ahmad @ Ayob, Mansor |
| author_sort | Silong, Sidik |
| collection | UPM |
| description | 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. |
| first_indexed | 2024-03-06T07:35:23Z |
| format | Article |
| id | upm.eprints-15788 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:35:23Z |
| publishDate | 2009 |
| publisher | Science Publications |
| record_format | dspace |
| spelling | upm.eprints-157882017-11-30T08:19:38Z http://psasir.upm.edu.my/id/eprint/15788/ Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule Silong, Sidik Salisu, Abdulsalam Abubakar Ab. Rahman, Mohamad Zaki Rahman, Lutfor Ahmad @ Ayob, Mansor 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. Science Publications 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15788/1/ajassp.2009.561.564.pdf 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 http://thescipub.com/abstract/10.3844/ajassp.2009.561.564 10.3844/ajassp.2009.561.564 |
| spellingShingle | Silong, Sidik Salisu, Abdulsalam Abubakar Ab. Rahman, Mohamad Zaki Rahman, Lutfor Ahmad @ Ayob, Mansor Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule |
| title | Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule |
| title_full | Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule |
| title_fullStr | Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule |
| title_full_unstemmed | Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule |
| title_short | Nematic and smectic mesophase from calamitic bisazobenzene liquid crystal: synthesis and characterization of 1- methoxyhexyloxy-4'-(4-phenylazo) azobenzene hybrid molecule |
| title_sort | nematic and smectic mesophase from calamitic bisazobenzene liquid crystal synthesis and characterization of 1 methoxyhexyloxy 4 4 phenylazo azobenzene hybrid molecule |
| url | http://psasir.upm.edu.my/id/eprint/15788/1/ajassp.2009.561.564.pdf |
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