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US 2009/0212263 A1Published application
Electrically conductive nanocomposite particles having a polyalkyl acrylate core and a polyaniline coating
AssigneesUPPA-Universite de Pau et des Pays de l'Adour, Centre National de la Recherche Scientifique (CNRS)
InventorsStephanie Reynaud, Nicolas Kohut Svelko, Mathieu Joubert
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Abstract
The invention concerns electrically conductive composite nanoparticles having an alkyl polyacrylate core and a polyaniline coating, the dispersions comprising them and their use for preparing conductive films. The invention also concerns a method for making particles, comprising an elastomeric core and a polyaniline coating.
Claims28
Electrically conductive nanocomposite particles comprising:
- a core constituted by a poly-C1-C6-alkyl acrylate homopolymer or by a copolymer of C1-C6-alkyl acrylate and an α,β-unsaturated amide comonomer;
- a coating constituted by polyaniline;
- a non-ionic surfactant.
Process for the preparation of a dispersion of particles comprising:
- a core constituted by an elastomeric polymer or by a copolymer of an elastomeric monomer and an α,β-unsaturated amide comonomer,
- a coating constituted by polyaniline, and
- a non-ionic surfactant,
- said process comprising:
- a) the polymerization of elastomeric monomers, and where appropriate of α,β-unsaturated amide monomers, in the presence of a non-ionic surfactant and of a polymerization catalyst in a dispersing medium;
- and
- b) the addition of aniline monomers and of a polymerization catalyst to the medium containing the particles of elastomeric polymer or of copolymer of elastomeric monomer and an α,β-unsaturated amide comonomer obtained in step a).
4 more elements
Dependencies are inferred from the claim text.