物理化学学报2009，Vol.25Issue(12)：2409-2412,4.
以全氟丁基为基础的具有高表面活性的氟表面活性剂
Perfluorobutyl-Based Fluorinated Surfactant with High Surface Activity
摘要
Abstract
The environmentally friendliness and biodegradability of fluorinated surfactants are increasingly important and the use of long-chain (≥C_8) perfluorinated surfactants will be evidently forbidden in future. In this work, a cationic fluorinated surfactant, N-[3-(dimethylamino)propyl] butanesulfonamide monohydrochloride (C_4F_9SO_2NH(CH_2)_3-NH(CH_3)_2~+Cl~-, abbr. PFB-MC) based on a short fluorocarbon chain, perfluorobutyl, was synthesized. This surfactant was effective in acidic environments. It shows very high surface activity and its lowest surface tension (19.80 mN·m~(-1)) in aqueous solution can be compared with the common fluorinated surfactants. The surface tension-logarithm of concentration (γ-lgc) curve of PFB-MC at a constant pH (pH=2.6-2.7) and the effect of salt addition on surface tension ([NaCl]=0.1 mol·L~(-1)) at this pH were obtained by surface tension measurement. The effect of pH on the surface tension of these PFB-MC solutions below and above critical micelle concentration (cmc) was also studied.关键词
氟表面活性剂/表面张力/环境保护/酸性条件/盐效应Key words
Fluorinated surfactant/ Surface tension/ Environment protection/ Acidic condition/ Salt effect分类
化学化工引用本文复制引用
杨百勤,陈凯,邢航,肖进新..以全氟丁基为基础的具有高表面活性的氟表面活性剂[J].物理化学学报,2009,25(12):2409-2412,4.基金项目
The project was supported by the Foundation of Shaanxi Provincial Department of Education,China(09JK364).陕西省教育厅基金(09JK364)资助项目 （09JK364）
