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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25010

    Title: Impact on the mesophase transition temperatures of 1,4-bis(naphthyl)-1,3-butadiyne of the attachment of terminal alkoxy chains
    Authors: 徐秀福;Hsu, Hsiu-fu;Lai, Ying-hui;Lin, Shu-yu;Lin, Wei-chung;Chen, Jen-fon
    Contributors: 淡江大學化學學系
    Date: 2003-03-01
    Issue Date: 2009-12-01
    Publisher: Taylor & Francis
    Abstract: The synthesis of 1,4-bis(2-naphthyl)-1,3-butadiynes, containing terminal alkoxy chains, is reported. The mesomorphism of these compounds has been characterized by differential scanning calorimetry and polarizing optical microscopy. The introduction of terminal alkoxy chains, significantly lowers the melting temperature of the analogous core without terminal chains. The induction of a smectic phase occurred when two decyloxy chains were attached. The solid state structures and packing arrangements of the butyloxy derivative and the chainless core were determined by single crystal X-ray diffraction, and revealed greater layer interpenetration for the substituted material.
    Relation: Liquid Crystals 30(3), pp.325-329
    DOI: 10.1080/0267829031000071257
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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