Copolymers containing residues of at least one olefinic monomer and a method of making such copolymers including the steps of: (a) providing a pressurized stirred tank; (b) feeding monomer compositions to one or more stirred tank reactors, where at least one monomer composition includes one or more monomers according to structure (I): ##STR00001## where R.sup.1 is linear or branched C.sub.1 to C.sub.4 alkyl and R.sup.2 is selected from methyl, linear, cyclic or branched C.sub.1 to C.sub.20 alkyl, alkenyl, aryl, alkaryl and aralkyl; (c) feeding an initiator composition to the STR; (d) maintaining in the STR hydraulically full; (e) maintaining the monomer compositions in (b) and the initiator compositions in (c) in the STR for a residence time sufficient to effect conversion of the monomers to a copolymer composition; and (f) discharging the copolymer composition.