NORBORNENE OPEN-RING POLYMERS, PRODUCTS OF HYDROGENATION THEREOF AND PROCESSES FOR THE PRODUCTION OF BOTH

摘要

A norbornene open-ring polymer having a weight-average molecular weight of 500 to 1,000,000 in terms of polystyrene and a melting point of 140 DEG C or above is produced by polymerizing a norbornene monomer mixture comprising a polycyclic norbornene monomer by using a polymerization catalyst containing as the main component a compound of a Group 6 transition metal of the periodic table bearing at least one imido group and at least two substituents (A) selected from the group consisting of alkoxy, aryloxy, alkylamido and arylamido; and hydrogenation of this polymer gives a product of hydrogenation thereof having a melting point of 140 DEG C or above.