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    題名: Deuteron Resonance of D2O of Nematic Disodium Cromoglycate-Water Systems
    作者: Yu, L. J.;Saupe, A.
    貢獻者: 淡江大學化學學系
    日期: 1982-02
    上傳時間: 2009-12-01
    出版者: Philadelphia, PA: Taylor & Francis
    摘要: Disodium cromoglycate (DSCG) in mixtures with water forms a nematic state of high water concentration with cylindrical aggregates. Samples prepared with D2O were studied by deuteron magnetic resonance. The splitting of the D2O signal in the nematic range is reported for mixtures of D2O and DSCG varying in the molar ratio D2O/DSCG from 120 to 260 and for mixtures containing NaCl with molar ratios D2O/DSCG of 167 and 207 and NaCl/DSCG of 0.5 and 2. The splitting in the nematic range increases with decreasing temperature. At corresponding temperatures and for a given NaCl concentration the splitting is approximately inversely proportional to the D2O concentration. The addition of NaCl increases the temperature stability of the nematic range and reduces the temperature dependence of the splitting. It indicates that the addition of salt leads to stiffer aggregates.
    關聯: Molecular crystals and liquid crystals 80(1), pp.129-134
    DOI: 10.1080/00268948208071026
    顯示於類別:[化學學系暨研究所] 期刊論文

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