Synthesis and combined properties of novel fluorinated cationic surfactants derived from hexafluoropropylene dimer

作     者：Chao Lin Renming Pan Ping Xing Biao Jiang 

作者机构：School of Chemical EngineeringNanjing University of Science and Technology CAS Key Laboratory of Synthetic Chemistry of Natural SubstancesShanghai Institute of Organic ChemistryChinese Academy of Sciences 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2018年第29卷第11期

页      面：1613-1616页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China (No. 2167020782) the Science and Technology Commission of Shanghai Municipality (No. 15DZ2281500) 

主　　题：Fluorinated cationic surfactants Surface tension Combined properties Fire fighting Aqueous film forming foams 

摘      要：Three novel fluorinated cationic surfactants were prepared by adopting perfluoro-2-methy1-2-pentene as raw substrate. The as-obtained fluorinated cationic surfactants exhibited excellent surface properties, all of them can reduce the surface tension of water to below 20.00mN/m at the critical micelle concentrations （CMC）. The incorporation of SDS, AOS, APG or LAB into 2-（4-（3,3,4,4,5,5,5-heptafluoro- 2,2-bis（trifluoromethyl）pentyl）benzamido）-N,N-dimethylethana-mine oxide 4a could generate much lower CMC and surface tension value at the CMC than individual 4a. Especially, the surface tension values of that combined APG/4a can be reduced to 17.31 mN/m. The excellent surface activities and their remarkable compatibility to various types of hydrocarbon surfactants make them as sustainable alternatives to PFOA （perfluorooctanoic acid, C7F15CO2H） and PFOS （perfluorooctane sulphonate, C8F17SO3X, with X = K, Na, H）.