Syntheses and Mesomorphic Properties of New Liquid Crystalline Materials Involving Piperazine Skeleton |
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Authors: | Keiichi Kinashi Shunsuke Takenaka Shigekazu Kusabayashi |
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Institution: | Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita, Osaka, 565, Japan |
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Abstract: | Some mesogenic materials involving a piperazine skeleton were prepared and the thermal properties were examined by DSC and microscopic analyses. Although the piperazines have a thermal flexibility similar to cyclohexyl ring, a lateral interaction due to lone pair electrons of nitrogens largely enhances the thermal stability of the mesophase. The piperazine compounds tend to preserve a smectic arrangement. |
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Keywords: | reentrant smectic phase x-ray study binary liquid crystal |
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