METHOD OF PRODUCING COPOLYMERS OF ISOPRENE WITH STYRENE Russian patent published in 2011 - IPC C08F236/10 C08F236/08 C08F297/04 

FIELD: chemistry.

SUBSTANCE: described is a method of producing copolymers of isoprene with styrene in a medium of hydrocarbon solvent in the presence of an anionic initiator combined with an electron donor - a sodium-containing organic compound, followed by deactivation of the catalyst, stabilisation and extraction of the copolymer, involving using isoprenyl magnesium - a product of reaction between isoprene and magnesium metal as the anionic initiator, and ethyl ether of sodium ethyleneglycolate as the sodium-containing organic compound and the process is carried out in equivalent ratio of the latter to isoprenyl magnesium equal to 1 : (0.77-1.51).

EFFECT: obtaining copolymers of isoprene with styrene with high content of vinyl links in a wide range of molecular weight as a block and statistical structure.

2 cl, 1 tbl, 10 ex