DIENE-BASED POLYMER WITH CONJUGATED DOUBLE BONDS AND RUBBER COMPOSITION CONTAINING SAME Russian patent published in 2025 - IPC C08C19/25 C08C19/22 C08L9/06 C08L15/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to high-molecular compounds, specifically to a polymer based on a conjugated diene. Disclosed is a polymer based on a conjugated diene, containing a repeating unit obtained from a monomer based on a conjugated diene, and a repeating unit obtained from a vinyl aromatic monomer. Conjugated diene monomer is one or more monomers selected from the group consisting of 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, piperylene, 3-butyl-1,3-octadiene, isoprene, 2-phenyl-1,3-butadiene and 2-halogen-1,3-butadiene (halogen means a halogen atom). Vinyl aromatic monomer is one or more monomers selected from the group consisting of styrene, α-methylstyrene, 3-methylstyrene, 4-methylstyrene, 4-propylstyrene, 4-cyclohexylstyrene, 4-(p-methylphenyl)styrene, 3-(2-pyrrolidino-ethyl)styrene, 4-(2-pyrrolidinoethyl)styrene and 3-(2-pyrrolidino-1-methylethyl)-α-methylstyrene. At that, tan δ on temperature, obtained from dynamic viscoelasticity analysis using advanced rheometric expansion system (ARES), full width at half maximum (FWHM) of the peak tanδ shown in temperature range from −100 °C to 100 °C is 20 °C or more. Rheometric expansion system performs measurements using a dynamic mechanical analyzer with a torsion mode under conditions of frequency of 10 Hz, deformation of 0.5% and at a temperature increase rate of 5 °C/min.

EFFECT: described polymer and articles made from it have high slippage resistance and wear resistance.

10 cl, 1 dwg, 5 tbl, 4 ex