DICYCLOPENTADIENE METATHESIS POLYMERISATION CATALYST, PREPARATION METHOD THEREOF AND POLYMERISATION METHOD Russian patent published in 2010 - IPC C08F4/80 C07F15/00 B01J23/46 B01J31/18 B01J37/00 C08F32/00 C08G61/08 C08K5/56 

FIELD: chemistry.

SUBSTANCE: invention relates to catalysis and preparation of dicyclopentadiene metathesis polymerisation catalysts. The metathesis polymerisation catalyst has the formula: , where L is a substitute selected from the group: , , . Several methods of preparing the catalyst are disclosed. The method of preparing the catalyst having formula , where , , is characterised by that, a second generation Grubbs catalyst is reacted with N,N-dialkyl-(2-vinylbenzyl)amine or 4-(2-vinylbenzyl)morpholine in an inert atmosphere at 60-85°C in the presence of a solvent, where the dialkyl- is methylethyl- or methyl(2-methoxyethyl). The method of preparing the catalyst formula , where L is a substitute selected from the group: , , , , involves reacting a ruthenium triphenylphosphine complex with 1,1-diphenyl-2-propyn-1-ol in tetrahydrofuran at boiling point of the solvent in an inert atmosphere and then with tricyclohexylphosphine at room temperature in an inert atmosphere. The ruthenium indenylidene complex formed is extracted and then, successively in the same reactor, reacted with 1,3-bis-(2,4,6-trimethylphenyl)-2-trichloromethylimidazolidine and 2-(N,N-dialkylaminomethyl)styrene or 1-(2-vinylbenzyl)pyrrolidine or 4-(2-vinylbenzyl)morpholine in toluene while heating to 60-70°C in an inert atmosphere. The dialkyl- is diethyl-, methylethyl- or methyl(2-methoxyethyl)-. A dicyclopentadiene metathesis polymerisation method is disclosed, which involves polymerisation using the catalyst in paragraph 1 in molar ratio substrate: catalyst ranging from 70000:1 to 200000:1.

EFFECT: invention increases catalyst output and simplifies synthesis by reducing the number of steps, and also enables to obtain polydicyclopentadiene with good application properties.

4 cl, 1 tbl, 22 ex