METHOD OF PRODUCING BUTADIENE POLYMERS Russian patent published in 2010 - IPC C08F136/06 

FIELD: chemistry.

SUBSTANCE: invention describes a method of producing butadiene polymers through continuous polymerisation of a monomer in a medium of a hydrocarbon solvent and in the presence of an initiating system. The method is characterised by that the initiating system used is an organolithium compound and a modifying additive which is a mixture of magnesium, sodium and potassium alcoholates in molar ratio equal 1 : 0.1-2 : 0.2-1.5, with molar ratio lithium: modifying additive equal to 1 : 0.01-1.0, and the anti-gel additive used is α-olefins or substituted benzenes or mixture thereof in weight ratio hydrocarbon solvent: anti-gel additive equal to 98-50 : 2-50.

EFFECT: obtaining polybutadiene via continuous polymerisation of butadiene with low (10-20 %) and controlled content of vinyl links, narrow molecular weight distribution and low content of the gel fraction.

4 cl, 3 tbl, 9 ex