Centre National De La Recherche Scientifique

Rhodia Chimie

Other

Rhodia Operations

Universitë De Bordeaux

Institut Polytechnique De Bordeaux

Institut Des Corps Gras Etudes Et Recherches Techniques-iterg

Pivert

Vencorex Frence

Vencorex France

Daniel Taton

Mathias Destarac

Yves Gnanou

Bruno Thierry Bavouzet

Henri Cramail

Frédéric Leising

Alex Dureault

Gerard Mignani

Pascal Herve

Eric Cloutet

Alain Deffieux

Antoine Baceiredo

Tsuyoshi Kato

Etienne Grau

Didier Pintori

Cécile Bouilhac

Blandine Testud

Fabien Bonnette

Gopakumar Sivasankarapillai

Ramiro Guerrero-Santos

Gérard Mignani

A polymer is provided having at least one repetitive unit represented by the following formula: And, preferably at least one, preferably at least two, repetitive units represented by the following formula: 

Branched polymers, their preparation process, and uses therof

The present invention relates to a catalyst system, to a method of manufacturing this system, and also to uses of this system. The catalyst system of the invention is characterized in that it comprises molecules of a polymer having, at one of its ends or along the chain, one or more polar functional groups; a solvent, said solvent, due to the fact of said polar functional group of said polymer, provoking and maintaining, when said molecules of the polymer are introduced thereinto, an organization of said molecules of the polymer into aggregates, micelles or vesicles so that the polar functional groups of said polymer are located inside the aggregates, micelles or vesicles formed; and a catalyst activator and a catalyst trapped in said aggregates, micelles or vesicles of said polymer. The catalyst system of the present invention may be used, for example, for catalyzing a (co)polymerization of olefins.

Catalyst system, method of manufacture and use

The present invention relates to a process for preparing a compound comprising at least a urethane group &#x2014;HN&#x2014;C(&#x2550;O)&#x2014;O, said process comprising a step (E) in which a compound (I) comprising at least an isocyanate functional group &#x2014;N&#x2550;C&#x2550;O is reacted with an organic compound (II) carrying at least a hydroxyl group &#x2014;OH, said reaction being carried out in a presence of a carbene (III) used as a catalyst.

Synthesis of urethanes and polyurethanes catalysed by carbenes

The invention relates to a method of preparing statistical microgels. The inventive method comprises a step involving the radical polymerisation of a composition containing: at least one monoethylenically-unsaturated monomer, at least one multiethylenically-unsaturated monomer, a free radical source and a control agent. The invention also relates to first generation microgels thus prepared and all the compounds resulting from said microgels (next-generation microgels).

Synthesis of statistical microgels by means of controlled radical polymerisation

The invention concerns a method for preparing a first generation polymer comprising a step which consists in free radical polymerization of a composition comprising: at least an ethylenically unsaturated monomer, a source of free radicals, at least a dithiophosphoroester compound.

Method for synthesis of block polymers by controlled free radical polymerization

The invention concerns a method for preparing a first generation polymer comprising a step which consists in free radical polymerization of a composition comprising: at least an ethylenically unsaturated monomer, a source of free radicals, and at least a cyclic organic compound including at least a tetrathiophosphate group.

Synthesis of block polymers obtained by controlled free radical polymerization

Composition comprising a copolymer at least two charged blocks and type of opposite charge

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Camarsac, France

Daniel Taton