碳氢/碳氟表面活性剂复配体系溶致液晶的研究  

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

作　　者：马成松[1,2] 李干佐[1,2] 沈强 汪汉卿[1,2] 

机构地区：[1]山东大学化学院 [2]中国科学院兰州化学物理研究所

出　　处：《应用化学》1997年第4期50-54,共5页Chinese Journal of Applied Chemistry

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２ＨＮＭＲ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．Lyotropic liquid crystals formed from mixed surfactants perfluorooctanoic sodium/hexadecyltrimethyl ammonium bromide(OBS/CTABH2OC4H9OH) have been used to determine the phase regions. The area of phase region in present system was bigger than that in CTABC4H9OHH2O 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.

关 键 词：表面活性剂 全氟辛酸钠 复配 OBS CTAB 溶致液晶 

分 类 号：O753.2[理学—晶体学] O647.2