中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (4): 50-54.

• 研究论文 • 上一篇    下一篇

碳氢/碳氟表面活性剂复配体系溶致液晶的研究

马成松1, 李干佐1, 沈强1, 汪汉卿2   

  1. 1. 山东大学化学院, 济南 250100;
    2. 中国科学院兰州化学物理研究所, 兰州
  • 收稿日期:1996-10-22 修回日期:1997-05-19 出版日期:1997-08-10 发布日期:1997-08-10

Study of Lyotropic Liquid Crystals Formed by Mixed C-H/C-F Surfactants

Ma Chengsong1, Li Ganzuo1, Shen Qiang1, Wang Hanqing2   

  1. 1. Department of Chemistry, Shandong University, Ji'nan 250100;
    2. Lanzhou Institute of Chmical Physics, Chinese Academy of Sciences, Lanzhou
  • Received:1996-10-22 Revised:1997-05-19 Published:1997-08-10 Online:1997-08-10

PDF

352

被引次数

3

摘要： 以全氟辛酸钠-十六烷基三甲基溴化铵/正丁醇/水体系为研究对象，通过其相图的测定确立了液晶区。其液晶区域面积大于十六烷基三甲基溴化铵/正丁醇/水体系的液晶区。摄制了该体系液晶区系列样品的纹理照片，用小角X光衍射法测定了液晶各种组分变化时的层间距，并结合2H NMR谱图和纹理照片的对照和分析，从分子水平上研究了液晶的微观结构。

关键词: 全氟辛酸钠, 十六烷基三甲基溴化铵, 表面活性剂复配体系, 液晶纹理, 小角X光衍射法, 2H NMR

Abstract: Lyotropic liquid crystals formed from mixed surfactants perfluorooctanoic sodium/hexadecyltrimethyl ammonium bromide(OBS/CTAB-H2O-C4H9OH) have been used to determine the phase regions. The area of phase region in present system was bigger than that in CTAB C4H9OH H2O system. Some typical photographs were obtained by polarized light microscope. The geometrical dimensions were determined by small angle X-ray diffraction. The 2H NMR method together with liquid crystals photographs were applied to determine the exact liquid crystals' structure.

Key words: perfluorooctanoic sodium, hexadecyltrimethyl ammonium bromide, mixed surfactant system, crystal texture, small angle X-ray diffraction, 2H NMR

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