Patent ID: 7786230
Filing Date: 2010-08-31
Classification: C08F,C08G,C09K

Abstract:
1. A method for preparing a cycloolefin polymer containing polar functional groups, comprising the steps of: preparing a catalyst mixture including i) a precatalyst represented by Chemical Formulae 1a, 1b, or 1c, containing a Group 10 transition metal having a ligand containing oxygen ions bonded to the metal; ii) a first cocatalyst which is tricyclohexylphosphine; and iii) a second cocatalyst which is dimethylanilinium tetrakis(perfluorophenyl)borate; and subjecting a monomer solution comprising a norbornene-based compound containing a polar functional group to an addition polymerization reaction in the presence of an organic solvent and the catalyst mixture, at a temperature of 80-200° C., wherein the total amount of the organic solvent is 50-800% by weight based on the total weight of the monomer contained in the monomer solution, and the product yield of the cycloolefin polymer is 50% by weight or more based on the total weight of the monomer, wherein the polymer comprises more than 30 mole % of norbornene-based compound containing a polar group represented by the following chemical formula 5: wherein M is palladium, n is 1 or 2, R each of R wherein m is an integer of 0 to 4, at least one of R wherein the non-polar functional group is selected from the group consisting of hydrogen; halogen; a linear or branched C the polar functional group includes a non-hydrocarbonaceous polar group containing at least one of O, N, P, S, and B, and is selected from the group consisting of OR in which p is an integer of 1 to 10, R R