This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having of the structural formula: ##STR1##

wherein R represents an alkyl group containing from 1 to about 10 carbon atoms or a hydrogen atom, and wherein R¹ and R² can be the same or different and represent hydrogen atoms or a moiety of the structural formula: ##STR2##

wherein the R³ groups in repeat units and in different repeat units can be the same or different and represent hydrogen atoms or alkyl groups containing from 1 to about 4 carbon atoms, wherein n and x represents integers from 1 to about 10, with the proviso that R¹ and R² can not both be hydrogen atoms.