应用化学 ›› 1993, Vol. 0 ›› Issue (5): 84-86.

• 研究简报 • 上一篇    下一篇

一种新型两性表面活性剂的合成

史真, 刘婕妤   

  1. 西北大学化学系 710069 西安
  • 收稿日期:1992-08-13 修回日期:1993-04-19 出版日期:1993-10-10 发布日期:1993-10-10

A NOVEL AMPHOTERIC SURFACTANT

Shi Zhen, Liu Jieyu   

  1. Department of Chemistry, Northwestern University, 710069 Xi'an
  • Received:1992-08-13 Revised:1993-04-19 Published:1993-10-10 Online:1993-10-10

摘要: 两性表面活性剂分子既含有阳离子亲水基,又含有阴离子亲水基,因而有其它表面活性剂所不具备的优异性能。本文将月桂酸和N-(2-羟乙基)乙二胺热缩合脱水,得到2-十一烷基-1-(2-羟乙基)-2-咪唑啉(1)。接着在还原剂的作用下,咪唑啉环碳氮双键还原并开环得到一般方法难以合成的N,N-二取代乙二胺(2)。(2)通过甲酰化(3)季铵化,引入两性离子,得到一种未见报道的具有多种官能团的两性表面活性剂(4)。

关键词: 月桂酸, N-羟乙基乙二胺, 两性表面活性剂, 合成

Abstract: A novel amphoteric surfactant was prepared from lauric acid and N-(β-hydroxyethyl)ethylene diamine via cyclization, reduction, amidation and quaterisation. Its surface tension and foaming capability were measured.

Key words: lauric acid, N-(β-hydroxyethyl) ethylene diamine, amphoteric surfactant, synthesis