Synthesis and mesomorphic properties of tolane-based liquid crystals with a fluorinated polar end group |
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| Authors: | Hengfeng Li Jianxun Wen |
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| Institution: |
a School of Material Science and Technology, Central South University, Changsha, PR China
b Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, PR China |
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| Abstract: | Three series of tolane-based liquid crystalline compounds with a fluorinated polar end group have been synthesized. Their phase transition temperatures were measured by texture observation in a polarizing microscope and confirmed by DSC. The all-fluorinated trifluoromethyl and trifluoromethoxy group have a tendency to promote the smectic A phase, but the difluoromethoxy group has the tendency to promote a wide nematic phase. |
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