| SYNTHESIS OF A GROUP OF MESOGEN JACKETED LIQUID CRYSTAL POLYMERS |
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| 作者姓名： | 朱兴隆 杨清传 周其风 |
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| 作者单位： | Chemistry Department，Peking University，The National Laboratory For Structural Chemistry of Unstable And Stable Species，Beijing，100871，Chemistry Department，Peking University，The National Laboratory For Structural Chemistry of Unstable And Stable Species，Beijing，100871，Chemistry Department，Peking University，The National Laboratory For Structural Chemistry of Unstable And Stable Species，Beijing，100871 |
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| 摘 要： | A group of the mesogen jacketed liquid crystal polymers based on the monomers 2,5-bis (4-substituted benzoyl)oxystyrenes are synthesized. The substituents include alkoxy, alkyl, and cyano groups. The synthesis and the primary characterization of the liquid crystal phase of the monomers and the polymers are described. While some of the monomers give smectic textures the polymers are found to be nematic above their melting or glass transition temperatures. Interestingly the unsubstituted monomer and its polymer poly 2,5-di( benzoyloxy ) styrene are also liquid crystalline. The single crystal structure of one of the monomers is also discussed.
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| 收稿时间： | 1991-07-25 |
SYNTHESIS OF A GROUP OF MESOGEN JACKETED LIQUID CRYSTAL POLYMERS |
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| ZHU Xinlong,YANG Qingchuan,ZHOU Qifeng.SYNTHESIS OF A GROUP OF MESOGEN JACKETED LIQUID CRYSTAL POLYMERS[J].Chinese Journal of Polymer Science,1992,0(2):187-194. |
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| Authors: | ZHU Xinlong YANG Qingchuan ZHOU Qifeng |
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| Institution: | Chemistry Department; Peking University; The National Laboratory For Structural Chemistry of Unstable And Stable Species; Beijing |
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| Abstract: | A group of the mesogen jacketed liquid crystal polymers based on the monomers 2,5-bis (4-substituted benzoyl)oxystyrenes are synthesized. The substituents include alkoxy, alkyl, and cyano groups. The synthesis and the primary characterization of the liquid crystal phase of the monomers and the polymers are described. While some of the monomers give smectic textures the polymers are found to be nematic above their melting or glass transition temperatures. Interestingly the unsubstituted monomer and its polymer poly 2,5-di( benzoyloxy ) styrene are also liquid crystalline. The single crystal structure of one of the monomers is also discussed. |
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| Keywords: | Mesogen jacketed liquid crystal polymers Rigid side chain liquid crystal polymers Liquid crystal monomers 2 5-Bis (4-alkoxybenzoyl) oxystyrene 2 5-Bis (4-alkylbenzoyl) oxystyrene 2 5-b is (4-cyanobenzoyl) oxystyrene 2 5-bis (4-cyanobenzoyl) ox |
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