应用化学 ›› 1998, Vol. 0 ›› Issue (3): 106-108.

• 研究论文 • 上一篇    下一篇

二-(2-乙基己基聚氧化烯烃)琥珀酸双酯磺酸钠的表面活性及应用

姚传义, 吴金川, 何志敏   

  1. 天津大学化学工程研究所 天津300072
  • 收稿日期:1997-09-19 修回日期:1997-12-13 出版日期:1998-06-10 发布日期:1998-06-10
  • 基金资助:
    国家自然科学基金;国家教委跨世纪优秀人才基金

Surface Activities and Application of Sodium Bis(2-ethylhexylpolyoxyalkylene) Sulfosuccinates

Yao Chuanyi, Wu Jinchuan, He Zhimin   

  1. Chemical Engineering Research Centre, Tianjin University, Tianjin 300072
  • Received:1997-09-19 Revised:1997-12-13 Published:1998-06-10 Online:1998-06-10

摘要: 二-(2-乙基己基)琥珀酸双酯磺酸钠(AOT)是一种优良的渗透剂,在工业上获得了广泛应用.AOT也是反胶团酶学研究中最常使用的一种表面活性剂.其优点是在形成反胶团时不 需要加入助表面活性剂,但AOT的极性头部与酶分子表面电荷之间的静电作用常造成酶在 反胶团中迅速失活[1].在非离子型表面活性剂形成的反胶团中,酶一般具有较好的活性和稳定性,但非离子型反胶团体系需加入助表面活性剂,给以后加工过程造成麻烦[2].为了结合离子型和非离子型反胶团体系的优点,作者制备几种二-(2-乙基己基聚氧乙烯)琥珀酸双酯磺酸钠(EO型)和二-(2-乙基己基聚氧丙烯)琥珀酸双酯磺酸钠(PO型),其分子结构与AOT相似,但在极性头与疏水尾之间连有聚氧乙烯链或聚氧丙烯链非离子性基团,因而兼有阴离子与非离子表面活性剂的特性.本文报道这几种新型复合表面活性剂的表面活性,考查其与异辛烷形成的反胶团中脂肪酶催化橄榄油水解的特性.

关键词: 二-(2-乙基己基聚氧化烯烃)琥珀酸双酯磺酸钠, 表面活性, 反胶团酶反应, 橄榄油水解

Abstract: Sodium bis(2-ethylhexyl polyoxyalkylene) sulfosuccinates of different polymerization numbers were synthesized. The activities of lipase in the reversed micelles formed by synthetic surfactants and normal AOT in isooctane have been compared in the process of catalytic hydrolysis of olive oil. The results showed the activity of lipase in sodium bis(2-ethylhexyl polyoxyethylene) sulfosuccinate(n=2 3)/isooctane reversed micelles was 2-fold higher than that in the normal AOT/isooctane reversed micelles.

Key words: sodium bis(2-ethylhexyl polyoxyalkylene) sulfosuccinate, surface activity, reversed micellar enzymatic reaction, olive oil hydrolysis