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Browsing by Author "Chen, Hsin-Lan"

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    High Birefringence lsothiocyanato bistolane liquid crystals for display application
    (2005)
    Liao, Yoan-Ming
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    Chen, Hsin-Lan
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    Hsu, Chain-Shu
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    應用化學系
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    Department of Applied Chemistry
    Two series of isothiocyanato bistolance liquid crystals were synthesized and characterized. Both biphenyl and naphthyl moieties were introduced to enhance the birefringence of the bistolane liquid crystals. DSC and optical polarized microscopy measurements reveal that all the synthesized bistolane liquid crystals show nematic and smectic liquid crystal phases. These compounds can be used to formulate the eutectic mixtures that exhibit a wide nematic range, high birefringence and low viscosity.
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    Synthesis and mesomorphic properties of super high birefringence isothiocyanato bistolane liquid crystals
    (2007)
    Liao, Yung-Ming
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    Chen, Hsin-Lan
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    Hsu, Chain-Shu
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    Gauza, Sebastian
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    Wu, Shin-Tson
    Four series of high birefringence bistolane liquid crystals containing isothiocyanato termal groups were synthesized and characterized. As well as the phenyl group, both biphenyl and naphthyl moieties were introduced to enhance the birefringence. These bistolane compounds exhibit reasonably low melting points and high birefringence of 0.5-0.8. A eutectic mixture was formulated from these compounds exhibiting a wide nematic range, high figure-of-merit and low viscosity.