Nematic calamitic bisazobenzene liquid crystal: synthesis and mesomorphic properties of 1-methoxybutyloxy-4`-(4-phenylazo)azobenzene
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- met...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Knowledgia Review, Malaysia
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/15789/1/15789.pdf http://psasir.upm.edu.my/id/eprint/15789/ http://www.scialert.net/abstract/?doi=ajaps.2009.177.183 |
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| Summary: | 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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