Behavior of wormlike micellar solutions formed without any additives from semi-fluorinated quaternary ammonium salts
作者:Gennifer Padoan、Elisabeth Taffin de Givenchy、Alessandro Zaggia、Sonia Amigoni、Thierry Darmanin、Lino Conte、Frédéric Guittard
DOI:10.1039/c3sm51591e
日期:——
of the obtained surfactants were characterized by DLS, zeta potential, viscosity, and Cryo-SEM. The surfactants with a long fluorinated chain form long and highly flexible aggregates that lead to highly viscous solutions and the formation of an entangled network made of flexible worm-like micelles. The viscoelastic properties of the surfactants that form hydrogels without any additives were characterized
The adsorption at air/water interface of a series of partially fluorinated/hydrogenated quaternary ammonium salts was characterized by the determination of static and dynamic surface tension, critical micelle concentration, surface excess, area per molecule and Krafft temperature. In particular, the variation of these parameters was studied as a function of fluorinated and hydrogenated chain length