| abstract |
Disclosed is a method for producing a cyclic olefin addition copolymer characterized by addition copolymerizing a monomer composition containing (1) 5-80% by mole of a cyclic olefin compound represented by the formula (1) below and having a substituent selected from alkyl groups, alkylsilyl groups and alkylsilylmethyl groups, and (2) 20-95% by mole of a cyclic olefin compound represented by the formula (2) below, in the presence of a palladium-based multicomponent catalyst containing (i) a specific palladium compound, (ii) a specific phosphorus compound and (iii) an ionic boron compound or an ionic aluminum compound. (1) (In the formula, one of A1-A4 represents an alkyl group having 4 or 5 carbon atoms, a trimethylsilyl group or a trimethylsilylmethyl group and the rest of them independently represent a hydrogen atom, a halogen atom or a methyl group.) (2) (In the formula, B1-B4 independently represent a hydrogen atom, a methyl group or a halogen atom.) |