Commissariat a L'energie Atomique

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Christian Levassort

Pierrick Buvat

Franck Jousse

Laurent Delnaud

Alexia Balland Longeau

Louis Moreau

Lyonel Guillot

A method for producing polymeric balls or polymeric beads doped with at least one metal element is provided. The method may comprise the following steps: a) a step for forming polymeric balls or beads by polymerization, in an organic phase comprising a polymerization initiator, of at least one ethylenic monomer comprising at least one chelating ligand of at least one metal element; and b) a step for putting said polymeric balls or beads in contact with a solution comprising at least one metal element.

Method for producing polymeric balls or beads containing metal elements

The present invention relates to polymers of poly(ethynylene phenylene ethynylene silylene) type comprising an inert spacer in the main chain of the polymer. The invention also relates to processes for preparing said polymers and to the cured products that may be obtained by heat-treating said polymers. The polymers according to the invention may be used especially in matrices for composites.

Poly(ethylene phenylene ethynylene silylenes) comprising an inert spacer and methods for preparing same

Heat-stable poly(ethynylene phenylene ethynylene polysiloxene(silylene)) polymers preferably of determined molecular mass, optionally bearing at the end of the chain groups derived from a chain-limiting agent. Processes for preparing these polymers, cured products obtained by heat-treating these polymers, and composite matrices comprising these polymers.

Poly (ethynylene phenylene ethynylene polysiloxene(silylene)) and methods for preparing same

Poly (ethynylene phenylene ethynylene silylene)s and method for preparation thereof

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Tours, France

Christian Levassort