CATALYST COMPOSITION AND METHOD FOR MAKING A POLYMER OR COPOLYMER

摘要

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.