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： 《应用化学》 2012年第8期906-909,共4页

摘　　要： 以p-全氟壬烯氧基苯磺酰氯(PFNPSC)和聚乙二醇(PEG-n)为原料,合成了p-全氟壬烯氧基苯磺酸聚乙二醇酯(PFNPS-PEG-n),用IR和19F NMR对产物结构进行了表征。考察了聚乙二醇平均相对分子质量和反应时间对反应的影响,测定了PFNPS-PEG-n水溶液的表面活性、泡沫性能和乳化性能。结果表明,以PEG-600为原料得到的PFNPS-PEG-n表面活性最高,其较优的合成工艺条件为:四氯化碳为溶剂,三乙胺为缚酸剂,n(PEG-600)∶n(PFNPSC)=1∶1,在40℃下反应6～8 h,产物PFNPS-PEG-600临界胶束浓度(CMC)为0.56 g/L,表面张力γCMC可达19.1 mN/m;20 mL 1 g/L PFNPS-PEG-600水溶液的泡沫体积95 mL,泡沫半衰期75 s。PFNPS-PEG-1000的乳化性能最佳。 Polyethylene glycol p-perfluorous nonenyloxyphenyl sulflonates （PFNPS-PEG-n） were synthesized from p-perfluorous nonenyloxyphenylsulfonyl chloride （ PFNPSC ） and polyethylene glycol （PEG-n）, and were characterized by IR and 19F NMR, respectively. The effects of average relative molecular mass of PEG-n and reaction time on alcoholysis were investigated. The performances of these surfactants such as surface tensions, foaming characterisitics and emulsifiabilities were studied. The surface activity of PFNPS-PEG-n synthesized from PEG-600 is the best, and the optimal reaction conditions are n（PFNPSC） ：n（PEG-600） = 1：1, reacts at 40°C for 6 - 8 h in CC14 in the present of NEt3. The critical micelle concentration（CMC） of PFNPS-PEG-600 is 0. 56 g/L, and its Ycmc is 19. 1 mN/m; 20 mL 1 g/L PFNPS-PEG-600 will produce 95 mL foam, and its half-life time is 75 s. Emulsifiability of PFNPS-PEG-1000 is the best among PFNPS-PEG-n.

关 键 词： 氟碳表面活性剂 表面张力 泡沫性能 乳化性能

领　　域： [理学] [理学]