English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 51893/87052 (60%)
造訪人次 : 8462060      線上人數 : 75
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25010

    題名: Impact on the mesophase transition temperatures of 1,4-bis(naphthyl)-1,3-butadiyne of the attachment of terminal alkoxy chains
    作者: 徐秀福;Hsu, Hsiu-fu;Lai, Ying-hui;Lin, Shu-yu;Lin, Wei-chung;Chen, Jen-fon
    貢獻者: 淡江大學化學學系
    日期: 2003-03-01
    上傳時間: 2009-12-01
    出版者: Taylor & Francis
    摘要: 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.
    關聯: Liquid Crystals 30(3), pp.325-329
    DOI: 10.1080/0267829031000071257
    顯示於類別:[化學學系暨研究所] 期刊論文


    檔案 大小格式瀏覽次數



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋