Catalyst composition and method for making a polymer or...

C - Chemistry – Metallurgy – 08 – F

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C08F 4/00 (2006.01) C08F 4/06 (2006.01) C08F 4/10 (2006.01)

Patent

CA 2365637

A catalyst composition which is solid at room temperature comprises a transition metal or transition metal compound having on average more than one ligand co-ordinated thereto, each ligand being supported by a support via a divalent group R, wherein R is an optionally substituted C1-C20 straight chain, branched or cyclic alkylene group, arylene, alkarylene or aralkylene group. Preferably, M is Cu(I), Y is C1 or Br, each ligand contains an organodiimine group e.g. a 1, 4 diaza-1,3-butadiene, 2, 2' -bipyridine, pyridine-2-carboxyaldehyde imine, oxazolidone or quinoline carbaldehyde group, and the support is an organic or siloxane polymer or network. Also disclosed is a method of making a polymer or co-polymer by controlled polymerisation which method comprises polymerising a vinyl containing monomer in the presence of an initiator and a catalyst composition according to the present invention.

L'invention concerne une composition catalytique solide à température ambiante, qui contient un métal de transition ou un composé de métal de transition ayant en moyenne plus d'un ligand lié à ce dernier, chaque ligand étant fixé à un support via un groupe divalent R, où R est une chaîne droite C¿1?-C¿20? éventuellement substituée, un groupe alkylène ramifié ou cyclique, un arylène, un alkarylène ou un groupe aralkylène. M est de préférence Cu(I), Y est Cl ou Br, chaque ligand contient un groupe organodiimine, p. ex. 1,4-diaza-1,3-butadiène, 2,2'-bipyridine, pyridine-2-carboxaldéhyde imine, oxazolidone ou un groupe quinoline carbaldéhyde, et le support est un polymère ou un réseau organique ou siloxane. L'invention concerne également un procédé de fabrication d'un polymère ou d'un co-polymère par polymérisation contrôlée. Le procédé consiste à polymériser un vinyle contenant un monomère en présence d'un initiateur et d'une composition catalytique obtenue selon la présente invention.

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