PROCESS FOR PRODUCING POLYALKENAMERS WITH INCREASED CIS-DOUBLE BOND CONFIGURATION

摘要

Process for producing polyalkenamers with increased cis-double bond configuration by ring-opening polymerization of cis,cis-1,5-cyclooctadiene or 2-norbornene in the presence of isoprene and/or a cyclic olefin with a double-bond pair in the 1,3-position. The polyalkenamers with increased cis-double bond configuration have lower crystallinity and melting point where the molecular weight is high, or are oils where the molecular weight is low.