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    Comparative Study of Polyacryloylacetone Monolayers at Dichloromethane-Water and Air-Water Interfaces

    Year: 1997

    Journal: Langmuir 1997, 13, 5362-5367, 20111221

    Authors: K. Balashev, A. Bois, J. E. Proust, Tz. Ivanova, I. Petkov, S. Masuda, and I. Panaiotov

    Organizations: Biophysical Chemistry Laboratory, University of Sofia, J. Bourchier 1 str., 1126 Sofia, Bulgaria Laboratoire d'OptoElectronique, Universite de Toulon et de Var, 83130 La Garde, France Pharmacie Galenique et Biophysique Pharmaceutique, Faculte de Pharmacie, 16 Bd Daviers, 49100 Angers, France Department of Applied Chemistry, Technical College, The University of Tokoshima, Tokoshima 770, Japan

    The properties of polyacryloylacetone (PAA) monolayers adsorbed at dichloromethane-water (DCM/W) interfaces were investigated by using the dynamic pendant drop method and a new rheological approach. The results were compared with those obtained at the air-water (A/W) interface. The role of the two interfaces on the interfacial organization of enolic units and the formation of tridimensional structures was discussed. The adsorption kinetics of Cu2+ ions onPAAmonolayers leading to metal-polymer complex formation were followed. The observed large difference in the kinetic rates at the two interfaces is probably related to the different interfacial organization of the enolic units.