Synthesis and mesomorphic properties of three- and four-ring liquid crystals containing cyclohexyl,phenyl and pyridyl units |
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| Authors: | Ximin Chen Kan Wang Hengfeng Li Jianxun Wen |
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| Affiliation: | Department of Applied Physics , Tokyo University of Science , 1-3 Kagurazaka, Shinjuku-Ku, Tokyo 162-8610, Japan |
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| Abstract: | Two series of 4-(3-alkoxycarbonylpyridyl-6-ethynyl)phenyl trans-4-n-alkylcyclohexylcarboxylates and 4-(3-alkoxycarbonylpyridyl-6-ethynyl)phenyl 4-(trans-4-n-alkylcyclohexyl)benzoates have been prepared. Their mesmorphic properties were observed and measured by polarizing optical microscopy and differential scanning calorimetry. The relationship between structures and properties is discussed, showing that the ferroelectric phase can be observed when chiral terminal chains exist. |
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| Keywords: | chemical synthesis quinoline-containing compounds liquid crystals thermotropic behaviour |
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