Centre National De La Recherche Scientifique

Solvay Sa

Universite Claude Bernard – Lyon1

Universite Paul Sabatier

Ecole Superieure De Chimie Physique Electronique De Lyon

Cpe Lyon Formation Continue Et Recherche

Ezus Lyon

Saint-gobain Glass France

Elodie Bourgeat-Lami

Yves Vanderveken

François Guillemot

Serge Ravaine

Pierre-Emmanuel Dufils

Jérôme Vinas

Christophe Mingotaud

Etienne Duguet

Muriel Lansalot

Laura Delafresnaye

Céline Poncet-Legrand

Stéphane Reculusa

Isabelle Chaduc

Anouchka Benakli

The present invention relates to a process for preparing a vinylidene chloride polymer composite comprising a vinylidene chloride polymer and clay materials. The process comprises polymerising vinylidene chloride and clay materials and the resulting vinylidene chloride polymer particle is surrounded by a plurality of clay platelets. The clay materials according to the present invention function as a solid stabilizer in the process for preparing a vinylidene chloride polymer composite of the present invention. The present invention further relates to the vinylidene chloride polymer composite obtainable from the process, to use of the vinylidene chloride polymer composite for the preparation of films, and to films prepared therefrom.

Process for the preparation of a vinylidene chloride polymer/clay composite, films obtained therefrom, and use thereof

The invention relates to nanometric or mesoscopic dissymmetric particles, and to a method for preparing the same. The particles have an inorganic part A and a spherical organic part B bound by physicochemical or covalent interactions. Material A is a metal oxide, a metal or a metal chalcogenide. Material B is a polymer consisting of recurrent units derived from a vinyl compound. The particles are obtained by modifying the surface of material A particles with a coupling agent C having a function Fwhich exhibits affinity for the polymer, and contacting the modified inorganic particles with the precursor(s) of the polymer B, in the presence of a free radical initiator and of a surfactant in solution in a solvent.

Nanometric or mesoscopic dissymetric particles, and method for preparing same

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Nievroz, France

Elodie Bourgeat-Lami