阳、阴、非离子表面活性剂胶束对酯碱性水解的影响

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (6): 937.

阳、阴、非离子表面活性剂胶束对酯碱性水解的影响

曾宪诚¹, 李启麟¹, 秦自明¹, 王茜¹, 邹萍¹, 李干佐², 皇起中³

1. 四川大学化学系, 成都, 610064;
2. 山东大学化学院;
3. 四川师范大学化学系

收稿日期:1994-08-18 修回日期:1995-02-18 出版日期:1995-06-24 发布日期:1995-06-24
通讯作者: 曾宪诚,男,56岁,教授.
作者简介:曾宪诚,男,56岁,教授.
基金资助:
国家自然科学基金

The Effect of Cationic,Anionic and Nonionic Surfactant Micelles on the Alkaline Hydrolysis of Esters

ZENG xian-Cheng¹, LI Qi-Lin¹, QIN Zi-Ming¹, WANG Qian¹, ZOU Ping¹, LI Gan-Zuo², HUANG Qi-Zhong³

1. Department of Chemistry, Sichuan Univeristy, Chengdu, 610064;
2. College of Chemistry, Shandong Univeristy, Jinan;
3. Department of Chemistry, Sichuan Normal University, Chengdu

Received:1994-08-18 Revised:1995-02-18 Online:1995-06-24 Published:1995-06-24

摘要/Abstract

摘要： 应用紫外分光光度法和热动力学方法研究了芳香酸酯和正脂肪酸酯在表面活性剂DTAB、TTAB、CTAB、SDS、Brij35、TritonX-100胶束中的碱性水解反应.阳、阴、非离子表面活性剂胶束对酯的碱性水解均有禁阻作用.讨论了胶束对酯碱性水解禁阻作用的原因.

关键词: 阳离子表面活性剂胶束, 阴离子表面活性剂胶束, 非离子表面活性剂胶束, 酯碱性水解, 禁阻作用

Abstract: The alkaline hydrolysis of aromatic and normal aliphatic acid esters has been studied at 25℃ in the micellar solutions of surfactants(DTAB,TTAB,CTAB,SDS,Brij-35,Triton X-100) with spectrophotometry and the method of thermokinetics in this paper.k_1mand k_2min micellar pseudophase have been calculated.The ratios of k_2mto k_2wor k_1mto k_1windicate that the alkaline hydrolysis of esters are inhibited by all researched micelles.We suppose the micropolarity of micelles can account for the inhbition of micelles.

Key words: Cationic surfactant micelle, Anionic surfactant micelle, Nonionic surfactant micelle, Alkaline hydrolysis of ester, Inhibition effect

TrendMD:

曾宪诚, 李启麟, 秦自明, 王茜, 邹萍, 李干佐, 皇起中. 阳、阴、非离子表面活性剂胶束对酯碱性水解的影响. 高等学校化学学报, 1995, 16(6): 937.

ZENG xian-Cheng, LI Qi-Lin, QIN Zi-Ming, WANG Qian, ZOU Ping, LI Gan-Zuo, HUANG Qi-Zhong. The Effect of Cationic,Anionic and Nonionic Surfactant Micelles on the Alkaline Hydrolysis of Esters. Chem. J. Chinese Universities, 1995, 16(6): 937.