高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (12): 1838.

• 论文 • 上一篇    下一篇

四乙铵离子对阴离子表面活性剂及其混合体系的表面活性和胶团形成的影响

张兰辉, 蔡舟夫, 丁慧君, 赵国玺   

  1. 北京大学化学系, 北京, 100871
  • 收稿日期:1994-02-21 修回日期:1994-05-22 出版日期:1994-12-24 发布日期:1994-12-24
  • 通讯作者: 张兰辉.男,30岁,博士,副教授.
  • 作者简介:张兰辉.男,30岁,博士,副教授.
  • 基金资助:

    北京市自然科学基金

The Effect of Tetraethylammonium Ion on the Surface Activities and Micelle Formation of Anionic Surfactants and Their Mixtures

ZHANG Lan-Hui, CAI Zhou-Fu, DING Hui-Jun, ZHAO Guo-Xi   

  1. Department of Chemistry, Peking University, Beijing, 100871
  • Received:1994-02-21 Revised:1994-05-22 Online:1994-12-24 Published:1994-12-24

摘要: 研究了溴化四乙铵介质中十二烷基硫酸四乙铵、全氟辛基磺酸四乙铵及其混合体系的表面化学性质。四乙铵离子在浓度较小时主要起电解质反离子作用,在浓度较大时则明显参与表面吸附和胶团的形成,其作用相当于在表面活性离子的疏水链上“引入”碳氢链,从而导致表面活性提高和碳氢/碳氟表面活性剂混合体系中碳氢/碳氟链间的互疏作用减弱等。

关键词: 表面活性剂, 十二烷基硫酸四乙铵, 全氟辛基磺酸四乙铵, 溴化四乙铵

Abstract: Results are presented of the effects of tetraethylammonium ion on the surface activities and micelle formation of anionic surfactants and their mixtures. Tetraethylammonium ion behaves as an inorganic ion when its concentration is low, but is obviously participates in the adsorption and micellization when its concentration gets higher. It seems that a hydrocarbon chain was introduced onto the hydrophobic chain of surfactants. As a result, the surfactants act higher surface acitivties and the mutual phobicity between the fluorocarbon and hydrocarbon surfactants is reduced.

Key words: Surfactant, Tetraethylammonium dodecylsulfate, Tetraethylammonium perfluorooctyl sulfonate, Tetraethylammonium bromide

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