| Synthesis and mesomorphic properities of some ferroelectric liquid crystals of lactate |
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| 引用本文： | 李衡峰,杨永刚,闻建勋. Synthesis and mesomorphic properities of some ferroelectric liquid crystals of lactate[J]. 中国化学, 2000, 0(6) |
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| 作者姓名： | 李衡峰 杨永刚 闻建勋 |
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| 作者单位： | Shanghai Institute of Organic Chemistry，Chinese Academy of Sciences，Shanghai 200032，China，Shanghai Institute of Organic Chemistry，Chinese Academy of Sciences，Shanghai 200032，China，Shanghai Institute of Organic Chemistry，Chinese Academy of Sciences，Shanghai 200032，China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China |
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| 摘 要： | A semiperfluorinated chain has been introduced into three series of lactate-based molecules,and their mesomorphic properities have been studied by DSC and optical polarized microscope.An abnormal phenomenon has been found that the introduction of a triple bond in the core of the molecule,which lengthened the molecule,gave rise to a decrease in the thermal stability of chiral smectic C phase and smectic A phase.2,3-Difluoro substituents of the phenylenic structure hinder the formation of the chiral smectic C phase because of the steric effect.
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Synthesis and mesomorphic properities of some ferroelectric liquid crystals of lactate |
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| LI,Heng-Feng YANG,Yong-Gang WEN,Jian-Xun. Synthesis and mesomorphic properities of some ferroelectric liquid crystals of lactate[J]. Chinese Journal of Chemistry, 2000, 0(6) |
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| Authors: | LI Heng-Feng YANG Yong-Gang WEN Jian-Xun |
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| Affiliation: | LI,Heng-Feng YANG,Yong-Gang WEN,Jian-XunShanghai Institute of Organic Chemistry,Chinese Academy of Sciences,Shanghai 200032,China |
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| Abstract: | A semiperfluorinated chain has been introduced into three series of lactate-based molecules,and their mesomorphic properities have been studied by DSC and optical polarized microscope.An abnormal phenomenon has been found that the introduction of a triple bond in the core of the molecule,which lengthened the molecule,gave rise to a decrease in the thermal stability of chiral smectic C phase and smectic A phase.2,3-Difluoro substituents of the phenylenic structure hinder the formation of the chiral smectic C phase because of the steric effect. |
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| Keywords: | Liquid crystal ferroelectric semiperfluorinated |
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