物理化学学报 >> 1998, Vol. 14 >> Issue (06): 509-513.doi: 10.3866/PKU.WHXB19980606

研究论文 上一篇    下一篇

双月桂酸三乙醇胺酯水溶液的囊泡性质研究

何煦, 赵国玺, 朱王步瑶   

  1. 北京大学物理化学研究所,北京 100871
  • 收稿日期:1997-09-23 修回日期:1997-12-02 发布日期:1998-06-15
  • 通讯作者: 何煦

Study on the Properties of Vesicles in Aqueous Solution of Triethanolamine Dilaurate

He Xu, Zhao Guo-Xi, Zhu Bu-Yao   

  1. Institute of Physical Chemistry,Peking University,Beijing 100871
  • Received:1997-09-23 Revised:1997-12-02 Published:1998-06-15
  • Contact: He Xu

摘要:

研究了具有非离子和阳离子双重特性的表面活性剂──双(月桂酸)三乙醇胺酯在稀盐酸溶液中未成囊泡的性质.发现只有当溶液pH值小于4.2时,囊泡才能形成; 而在溶液pH值2~3范围内,囊泡稳定性和“耐盐”能力最佳.这些特性被归之于此化合物酸性水解作用的结果.

关键词: 双烃链表面活性剂, 囊泡, 囊泡稳定性

Abstract:

The properties of the vesicles from triethanolamine dilaurate (ZRNC_2) which possesses the characteristics of both nonionic and ionic surfactants in the diluted solution of hydrochloric acid have been studied. It, is shown that the vesicles are not formed until the PH value of the solution is lower than 4.2, the vesicle the aqueous solution with and without NaCl has the best stability within pH=23 range These phenomena are due to the partial transformation of2RNC2 into chloride salt of triethanolamine dilaurate.

Key words: Surfactants with double chains, Vesicles, Vesicle stability