Abstract: 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 ℃ for 6~8 h in CCl4 in the present of NEt3. The critical micelle concentration(CMC) of PFNPSPEG-600 is 0.56 g/L, and its γCMC 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.

Key words: fluorocarbon surfactant, surface tensions, foaming characterisitics, emulsifiability, alcoholysis