MODIFIER, MODIFIED POLYMER BASED ON CONJUGATED DIENE CONTAINING THIS MODIFIER, AND METHOD OF PRODUCING POLYMER Russian patent published in 2024 - IPC C08F236/04 C08F236/10 C08F8/30 C08F8/42 C08C19/22 C08C19/25 C08C19/44 

FIELD: chemistry.

SUBSTANCE: invention relates to a modified conjugated diene polymer, as well as a method of its preparation and a modifier suitable for modifying the conjugated diene polymer. The modified conjugated diene polymer includes a repeating unit derived from the conjugated diene monomer and a functional group derived from the modifier. The specified modifier is a compound of the formula

wherein each R₁-R₆ independently represents an alkylene group of 1–20 carbon atoms, each R₇-R₁₀ independently represents an alkyl group of 1–20 carbon atoms, each R₁₁-R₁₄ independently represents an alkyl group with 1–20 carbon atoms, each R_m and R_n independently represent an alkylene group with 1–2 carbon atoms or an unsubstituted alkenylene group with 2 carbon atoms, m and n are integers selected from 1–3.

EFFECT: resulting polymer has good processability and excellent tensile strength, abrasion resistance, rolling resistance and wet skid resistance.

15 cl, 3 tbl, 5 ex