Novel copolymers of vinyl monomers with inclusion of styrene as promising viscosity modifiers of lubricating oils

The method of the compensating copolymerization was used for the synthesis of compositionally homogeneous binary and ternary copolymers of vinyl butyl ether, styrene and alkyl (meth)acrylates (butyl acrylate, butyl methacrylate and 2-ethylhexyl acrylate) with a comparable ratio of all components. New copolymers exhibit low susceptibility to mechanical degradation in dioctyl sebacate solution that is a synthetic base of lubricants. The latter indirectly confirms the composition homogeneity and gives an opportunity of their application as an import substitution of the oils thickeners.