METHOD OF PRODUCTION OF POLYMERS AND COPOLYMERS OF CYCLOALKENE OF NORBORNENE TYPE

摘要

Method of metathetical polymerization and copolymerization of cycloalkenes of norbornene type in the presence of catalytic system which is comprised of a) a catalytic precursor prepared by reaction of a tungsten compound containing at least one atom of chlorine, bromine and/or iodine with sterically hindered amines, whereby concentration of the tungsten is 0.01 to 50 milimols per mol of monomer and molar ratio of tungsten/amine is 0.01 to 1:5, b) cocatalyst selected from the group of organic compounds of aluminium, tin, lead, silicon, lithium, magnesium, boron, zinc or germanium, whereby molar ratio tungsten/cocatalyst is 1:1 to 1:20 and possibly, c) moderator of the polymerization reaction selected from the group of ethers, esters, ketons or nitriles in mole ratio cocatalyst/moderator 1:1 to 1:10.