RUTHENIUM CATALYST FOR POLYMERISATION OF DICYCLOPENTADIENE AND METHOD OF PRODUCING SAID CATALYST (VERSIONS) Russian patent published in 2009 - IPC C08F32/08 C08F132/08 C08F4/80 B01J27/13 B01J27/24 

FIELD: chemistry.

SUBSTANCE: invention relates to organometallic chemistry, specifically to a method of producing ruthenium carbene complex and a method of metathesis polymerisation of dicyclopentadiene. The catalyst for metathesis polymerisation of dicyclopentadiene is(1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(o-N,N-dimethylamino-methylphenylmethylene)ruthenium of formula The method of producing the said catalyst involves reacting a second generation Grubbs catalyst with 2-(N,N-dimethylaminomethyl)styrene in toluene while heating in an inert atmosphere. In another version of the said method, a first generation Grubbs catalyst is successively reacted with 1,3-bis-(2,4,6-trimethylphenyl)-2-trichloromethylimidazolidine and 2-(N,N-dimethylaminomethyl)styrene in a single reactor in toluene while heating in an inert atmosphere. The method of metathesis polymerisation of dicyclopentadiene is characterised by that, polymerisation is carried out using the proposed catalyst with ratio monomer: catalyst ranging from 75000:1 to 100000:1.

EFFECT: invention allows for obtaining a polymer with good mechanical properties at low expenses due to reduced catalyst consumption.

4 cl, 6 ex