物理化学学报 >> 2003, Vol. 19 >> Issue (02): 120-124.doi: 10.3866/PKU.WHXB20030206

研究论文 上一篇    下一篇

非水反相微乳的加溶与电导性质研究

张丽;张冬柏;马季铭;程虎民;齐利民   

  1. 北京大学化学与分子工程学院,北京　100871
  • 收稿日期:2002-08-16 修回日期:2002-10-31 发布日期:2003-02-15
  • 通讯作者: 程虎民 E-mail:hmcheng@chem.pku.edu.cn

The Solubilization and Conductivity Properties of Nonaqueous Reverse Microemulsion

Zhang Li;Zhang Dong-Bai;Ma Ji-Ming;Cheng Hu-Min;Qi Li-Min   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing　100871
  • Received:2002-08-16 Revised:2002-10-31 Published:2003-02-15
  • Contact: Cheng Hu-Min E-mail:hmcheng@chem.pku.edu.cn

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摘要： 研究了若干非水极性溶剂（甲酰胺、二甲基亚砜和乙腈）及其与水的混合物/AOT/正庚烷反相微乳体系的加溶性质及其电导行为.结果表明，在AOT反相微乳中，非水极性溶剂的最大加溶量均远小于水的加溶量.其最大加溶量顺序为二甲基亚砜< 甲酰胺< 乙腈< 水.甲酰胺和乙腈与水的加溶相互抵制，而水在一定范围内可促进二甲基亚砜的加溶.非水反相微乳的电导率随加溶量的变化规律与含水反相微乳体系类同，但到达电导率极大值和出现渗滤时的加溶量明显比含水反相微乳 体系的要小.

关键词: 非水反相微乳, 二甲基亚砜(DMSO), 甲酰胺(FA), 乙腈(ACN), 加溶量, 电导率

Abstract: In reverse microemulsions, sodium bis(2-ethylhexyl) sulfosuccinate(Aerosol OT, AOT) has an ability to solubilize much larger amount of water than dimethyl sulfoxide(DMSO), formamide and acetonitrile(the amount of the polar solvent solubilized in AOT reverse microemulsions: water >acetonitrile >formamide >DMSO). In the microemulsions with the mixtures of nonaqueous polar solvent and water as polar phases, the solubilization of formamide and acetonitrile is in antagonism to that of water, while the presence of water in a certain extent increases the solubilized amount of DMSO. The influences of various polar solvents on the conductivity properties of the reverse microemulsions have been studied.

Key words: Nonaqueous reverse microemulsions, DMSO, Formamide, Acetonitrile, 　Solubilization, Conductivity