| 以全氟丁基为基础的具有高表面活性的氟表面活性剂 |
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| 引用本文： | 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. |
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| 作者姓名： | 杨百勤 陈凯 邢航 肖进新 |
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| 作者单位： | Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China; Beijing FLUOBON Surfactant Institute, Beijing 100080, P. R. China |
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| 基金项目： | China(09JK364).陕西省教育厅基金 |
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| 摘 要： | 氟表面活性剂的环境和生物降解问题是最近的热点, 特别是全氟长链(≥C8)氟表面活性剂的应用限制乃至禁用已成为必然趋势. 本文合成了一种以短链的全氟丁基为基础的阳离子氟表面活性剂, N-3-(二甲基胺基)丙基]全氟丁基磺酰胺盐酸盐(C4F9SO2NH(CH2)3NH(CH3)+2Cl-, 简称为PFB-MC). 该表面活性剂适用于强酸性环境, 具有极高的表面活性, 其溶液最低表面张力(19.80 mN·m-1)和通常的氟表面活性剂相当. 通过表面张力方法得到了固定pH(pH=2.6-2.7)情况下PFB-MC的表面张力-浓度对数(γ-lgc)曲线, 以及该pH下外加盐(NaCl]=0.1 mol·L-1)对表面张力的影响; 并进一步研究了pH对PFB-MC在其临界胶束浓度(cmc)前后的表面张力的影响.
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| 关 键 词： | 氟表面活性剂 表面张力 环境保护 酸性条件 盐效应 |
| 收稿时间： | 2009-08-25 |
| 修稿时间： | 2009-10-16 |
Perfluorobutyl-Based Fluorinated Surfactant with High Surface Activity |
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| YANG Bai-Qin,CHEN Kai,XING Hang,XIAO Jin-Xin.Perfluorobutyl-Based Fluorinated Surfactant with High Surface Activity[J].Acta Physico-Chimica Sinica,2009,25(12):2409-2412. |
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| Authors: | YANG Bai-Qin CHEN Kai XING Hang XIAO Jin-Xin |
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| Institution: | Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China; Beijing FLUOBON Surfactant Institute, Beijing 100080, P. R. China |
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| 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. |
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| Keywords: | Fluorinated surfactant Surface tension Environment protection Acidic condition Salt effect |
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