作　　者： ; ; ; ; ;

机构地区： 浙江工业大学化学工程与材料学院绿色化学合成技术国家重点实验室

出　　处： 《精细化工》 2012年第5期438-442,共5页

摘　　要： 以全氟己基磺酰氟和N,N-二甲基-1,3-丙二胺为原料,经酰胺化和季铵化反应,制备了N,N,N-三甲基-N-(N'-全氟己基磺酰胺基)丙基碘化铵。用IR、1HNMR、MS(ESI)等方法对其结构进行了表征,并测试了其表面张力等性能。结果表明,N,N-二甲基-N'-全氟己基磺酰基丙二胺合成的较佳工艺条件为:以乙酸乙酯为溶剂,三乙胺为缚酸剂,n(C6F13SO2F)∶n〔H2NC3H6N(CH3)2〕=1∶1.2,室温反应3 h,收率为90.9%。季铵化反应的较优合成条件为:以四氯化碳为溶剂,n〔C6F13SO2NHC3H6N(CH3)2〕∶n(CH3I)=1∶1.7,室温反应2 h,收率为97.6%。所得季铵盐临界胶束浓度(CMC)为3.50 mmol/L,在CMC时表面张力为17.8 mN/m,具有良好的表面活性。 N-[（N′-perfluorohexylsulfonamido）propyl]-N,N,N-trimethyl ammonium iodide（Ⅰ） was prepared first by amidation from perfluorohexylsulphonyl fluoride（Ⅱ） and N,N-dimethyl-1,3-propane diamine（Ⅲ）,then by quaternization with methyl iodide（Ⅳ）,and the final product was characterized by means of IR,1HNMR,and MS.The surface tension（γ） and critical micelle concentration（CMC） of the aqueous solutions of Ⅰ were investigated.The optimal process conditions of amidation were：n（Ⅱ）∶n（Ⅲ）=1∶1.2,the reactants being agitated at room temperature for 3 h in EtOAc in the presence of N（Et）3 to give C6F13SO2NHC3H6N（CH3）2（Ⅴ） in the yield of 90.9%.The optimal process conditions of quaternization were：n（Ⅴ）∶n（Ⅳ）=1∶1.7,Ⅴ and Ⅳ reacting at room temperature for 2 h in CCl4 to give Ⅰ in the yield of 97.6 %.The CMC of the aqueous solution of Ⅰ is 3.50 mmol/L and its γCMC is 17.8 mN/m,showing excellent performance of surface activity of Ⅰ.

关 键 词： 氟碳表面活性剂 全氟己基磺酰氟 表面张力 临界胶束浓度

领　　域： [化学工程]