两性表面活性剂的合成及性质的研究

高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (6): 513.

两性表面活性剂的合成及性质的研究

杜先献, 申美娜, 杨世珖, 陈玉康, 万显美

西南石油学院应用化学系

收稿日期:1985-02-22 出版日期:1986-06-24 发布日期:1986-06-24

Studies on Syntheses and Properties of Amphoteric Surfactants

Du Xianxian, Sen Meina, Yang Shiguang, Chen Yukang, Wan Xianmei

Department of Applied Chemistry, Southwestern Petroleum Institute, Nanchong

Received:1985-02-22 Online:1986-06-24 Published:1986-06-24

摘要/Abstract

摘要： 为了研究表面活性剂的结构与性能的关系,合成了一类在酸、碱介质中不易水解,对强酸中的钢铁材料具有较好的缓蚀性,临界胶束浓度递变的新的两性表面活性剂2-(2′-二乙氨基乙氧基高级脂肪酸的盐酸盐.

Abstract: The carboxylic amphoteric surfactants containing ether tertiary amino and carboxylic groups were prepared. Their structures areCH₃(CH₂)nCHCO₂HOCH₂CH₂NEt₂·HClwhere n = 7(a), 8(b), 9(c), 11(d), 13(e), 15(f), 16(g) and 19(h). These compounds were synthesized by the corresponding₂-bromo fatty acid reacted with sodium 2-N, N-diethylaminoethoxide. The surface tensions and corrosion inhibition effect were determined for these surfactants. The surface tensions are 31.5, 32.1, 32.7, 35.4, 35.6, 37.0, 37.2, and 38.1 dyne/cm for a, b, c, d, e, f, g, and h respectively. The critical micelle concentrations are 25, 20, 7.5, 15, 1, 0.6, 0.5 and 0.1×10^-5mol/l for respective compounds. They are good corrosion inhibitors for steel in acid solutions.

TrendMD:

杜先献, 申美娜, 杨世珖, 陈玉康, 万显美. 两性表面活性剂的合成及性质的研究. 高等学校化学学报, 1986, 7(6): 513.

Du Xianxian, Sen Meina, Yang Shiguang, Chen Yukang, Wan Xianmei . Studies on Syntheses and Properties of Amphoteric Surfactants. Chem. J. Chinese Universities, 1986, 7(6): 513.