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    Title: Induced smectic mesomorphism in mixtures of p-cyano-p'-pentylbiphenyl and p-pentylbenzoic acid
    Authors: 余良杰;Yu, L.J.;Labes, M. M.
    Contributors: 淡江大學化學學系
    Date: 1979-01-01
    Issue Date: 2011-10-15 23:23:06 (UTC+8)
    Abstract: The phase diagram of p-cyano-p'-pentylbiphenyl (CPB) and p-pentylbenzoic acid (5BA) shows a maximum value of the nematic-isotropic transition temperature at ∼equimolar concentrations of CPB and the dimer of 5BA (D5BA). Two eutectic points occur at concentrations of D5BA of 8 and 65 mole %, respectively, and an induced smectic phase occurs in the concentration range of 15 to 65 % D5BA. Dielectric properties and the spontaneous homeotropy of some of the mixtures can best be understood by considering the phases to consist primarily of D5BA and CPB, with a small amount of free 5BA modulating the dielectric properties and promoting homeotropic alignment.
    Relation: Molecular crystals and liquid crystals 54(1-2), pp.1-8
    DOI: 10.1080/00268947908084844
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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