物理化学学报 >> 2010, Vol. 26 >> Issue (10): 2589-2596.doi: 10.3866/PKU.WHXB20101019

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表面活性剂水溶液的电导率研究方法和一些特征数据的提取

赵剑曦   

  1. 福州大学化学化工学院,胶体与界面化学研究所,福州350108
  • 收稿日期:2010-06-07 修回日期:2010-07-14 发布日期:2010-09-27
  • 通讯作者: 赵剑曦 E-mail:jxzhao.colloid@fzu.edu.cn
  • 基金资助:

    国家自然科学基金(20673021, 20873024) 资助项目

Conductivity for the Investigation of Ionic Surfactants in an AqueousSolution and Some Characteristic Parameters

ZHAO Jian-Xi   

  1. Institute of Colloid Interface Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
  • Received:2010-06-07 Revised:2010-07-14 Published:2010-09-27
  • Contact: ZHAO Jian-Xi E-mail:jxzhao.colloid@fzu.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20673021, 20873024).

摘要:

电导率是研究水溶液中离子型表面活性剂胶束化行为的重要方法, 本文总结了这个灵敏测定技术, 分别着重讨论了两个重要特征参数(临界胶束浓度(cmc) 和胶束的反离子解离度(α))的提取方法、电导率曲线某些特殊情况的分析以及预胶束化行为的研究, 这对运用电导率技术研究当前不断增多的具有强分子间相互作用的表面活性剂(例如Geminis) 体系具有参考价值.

关键词: 离子型表面活性剂, 电导率, 特征数据

Abstract:

Conductivity is important in the investigation of the micellization behavior of ionic surfactants in an aqueous solution. We review this sensitive technique and discuss methods to determine the critical micelle concentration (cmc) and the degree of dissociation of the micelle( α) in detail. We also investigatea special situation analysis for conductivity curves and premicellar behavior. This method is useful for the investigation of surfactant systems in which strong intermolecular interactions occur.

Key words: Ionic surfactant, Conductivity, Characteristic parameters

MSC2000: 

  • O648