Method of obtaining functionalised polymers of butadiene and copolymers of butadiene with styrene

FIELD: chemistry. SUBSTANCE: modifying additive represents mixed alkali metal or alkali or alkali-earth metal alcoholate with oxialkylated aromatic amine, which contains group -NH-. Modifying addition of organo-lithium compound is obtained in interaction of mixture of alcohols of oxialkylated aromatic amine, which contains group -NH-, and tetrahydrofurfuryl alcohol (THFA) with alkali or alcoholate of alkali or alkali-earth metals in toluene solution in equivalent ratio alkali metal:alkali-earth metal:amine:THFA, equal 1:(0÷3):(1÷4):(0÷1), at temperature 105÷118°C. Method of obtaining functionalised polybutadiene and butadiene copolymers with styrene is realised in medium of hydrocarbon solvent in presence of electron donor, selected from the group tetrahydrofuran, glycol ethers, and initiator, which contains functional groups. As initiator of polymerisation applied is product of interaction in mode "in situ" of organo-lithium compound and said modifying additive. EFFECT: development of method of obtaining functionalised polybutadiene and functionalised butadiene copolymers with styrene with specified microstructure of diene part of polymer for production of tyres by green tyre technology. 5 cl, 4 tbl, 13 ex