Stability and Adsorption Properties of Electrostatic Complexes: Design of Hybrid Nanostructures for Coating Applications

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Type de document : Archive ouverte | ISSN: 0743-7463

Résumé: International audience. We report the presence of a correlation between the bulk and interfacial properties of electrostatic coacervate complexes. Complexes were obtained by coassembly between cationic-neutral diblocks and oppositely charged surfactant micelles or 7 nm cerium oxide nanoparticles. Light scattering and reflectometry measurements revealed that the hybrid nanoparticle aggregates were more stable through both dilution and rinsing (from either a polystyrene or a silica surface) than their surfactant counterparts. These findings were attributed to a marked difference in critical association concentration between the two systems and to the frozen state of the hybrid structures.

Citer la référence: Qi, Ling , Chapel, Jean-Paul , Castaing, Jean-Christophe , Fresnais, Jérôme , Berret, Jean-Francois, Stability and Adsorption Properties of Electrostatic Complexes: Design of Hybrid Nanostructures for Coating Applications, HAL CCSD,

Sujets: [CHIM]Chemical Sciences ; [CHIM.MATE]Chemical Sciences/Material chemistry ; [CHIM.POLY]Chemical Sciences/Polymers ; [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] ; [PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]

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