ABSTRACT
Admicellization and adsolubilization of a fluorocarbon/hydrocarbon mixed chain surfactant (hybrid surfactant), 1-oxo-1-[4-(fluoroalkyl)phenyl]-2-alkanesulfonate (FCm-HCn), have been studied. Interfacial properties of FCm-HCn, bearing both a fluorocarbon chain and a hydrocarbon chain in the molecule,
have been compared with those of a di-alkyl hydrocarbon surfactant, sodium 1-(4-alkylphenyl)-1-oxo-2-alkanesulfonate (HCm-HCn). Adsorption isotherms and zeta-potential measurement indicated that FCm-HCn can adsorb on the aluminum oxide surface at low concentrations compared to the hydrocarbon surfactant. The total amount of FCm-HCn adsorbed on the aluminum oxide surface was higher than that of HCm-HCn. In addition, a pyrene fluorescence probe study showed that FCm-HCn is packed more rigidly in the admicelle than HCm-HCn.
