高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (7): 774.

• 研究简报 • 上一篇    下一篇

离子选择电极法测定胶团的反离子结合度

朱德民, 赵国玺   

  1. 北京大学化学系
  • 收稿日期:1988-10-20 出版日期:1990-07-24 发布日期:1990-07-24
  • 通讯作者: 朱德民

Determination of Counterion Binding Degree of Micelles by Ion-selective Electrode

Zhu Demin, Zhao Guoxi   

  1. Department of Chemistry, Peking University, Beijing
  • Received:1988-10-20 Online:1990-07-24 Published:1990-07-24

PDF (PC)

被引次数

8

摘要： 胶团的反离子结合度(K)对于胶团各种性质的研究是一个至关重要的参数[1～3]。已有不少方法用于K值的测定,其中以离子选择电极法最为方便[4～8],且此法赋予K值的含义也与热力学要求相同[9]。

关键词: 反离子结合度, 胶团, 表面活性剂, 离子选择电极

Abstract: An advanced method used to determine the counterion activity in micellar solution by ion-selective electrode is described, and a new equation dCcf/dCiT=-K is derived where Ccf denotes the concentration of unbound counterions, and CiT is the concentration of ionic surfactant. This equation is used to calculate the counterion binding degree(K) of micelles. K values of eight kinds of ionic micelles are investigated. They are in the range of 0. 6～0. 70.

Key words: Counterion binding degree, Micelle, Surfactant, Ion-selective electrode

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