METHOD OF PREPARING CATALYST FOR POLYMERISATION OF NORBORNENE Russian patent published in 2011 - IPC B01J37/00 C07F15/04 C07F5/04 C08F4/06 C08F32/08 

FIELD: chemistry.

SUBSTANCE: disclosed method relates to preparing a catalyst for addition polymerisation of norbornene to polynorbornene. Described is a method of preparing a catalyst for addition polymerisation of norbornene based on complexes of zero-valent nickel and BF₃OEt₂ involving use of catalyst systems of the composition (L)_nNi(PR₃)₂/BF₃OEt₂, where n=1, 2; L=PR₃ or ethylene; R=Ph, OC₆H₄CH₃-o combined with a controlled amount of water as a modifying component, and the process is carried out in a medium of organic solvent, e.g. toluene in molar ratio of boron to nickel B: Ni=50:1-600:1, ratio H₂O/Ni=2-104 and temperature 10-80°C.

EFFECT: high efficiency of the norbornene polymerisation process.

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