A process for preparing an aqueous emulsion polymer including providing at
least one ethylenically unsaturated monomer and a free radical redox
initiator system under emulsion polymerization conditions, the redox
initiator system including an oxidant; a reductant and a metal promoter
complex, and effecting the polymerization of at least some of the
ethylenically unsaturated monomer is provided. Also provided is a process
for reducing the residual ethylenically unsaturated monomer content of an
aqueous emulsion polymer.
Um processo para preparar um polímero aqueous do emulsion including fornecer ao menos um monomer ethylenically unsaturated e um sistema redox sob circunstâncias da polimerização do emulsion, o sistema redox do iniciador do radical livre do iniciador including um oxidant; um complexo reductant e do metal do promoter, e efetuar a polimerização ao menos de algum do monomer ethylenically unsaturated são fornecidos. É fornecido também um processo para reduzir o índice ethylenically unsaturated do monomer do residual de um polímero aqueous do emulsion.