Functionalized Butadiene-Styrene Synthetic Rubber

Abstract

Modifiers (M) of the microstructure of divinyl-styrene synthetic rubber DSSC of solution polymerization have been developed. Bifunctional
oligomers of propylene oxide were used as M – oligoesters containing aromatic amine in the head of the chain, which were obtained by anionic
polymerization. On their basis, two samples of M were obtained, which, in addition to monomers, a solvent and a catalytic system, were added
during polymerization of DSSC, which provided a high, more than 60 %, content of vinyl links in the experimental samples of DSSC (MD). The
structure, molecular weight, molecular mass distribution, Mooney viscosity and glass transition temperature MD, as well as the main physical
and mechanical parameters and the tangent of the angle of mechanical losses tgδ at temperatures –20, 0 and 60 °C of tread rubbers based on
MD were determined (devices DSC-60 Plus of Shimadzu, Agilent 1260 infinity, DMA 1, Metler Toledo). All these indicators are compared with
similar indicators of foreign industrial analogues MD.