On the preparation of acrylic acid/vinyl acetate copolymers with constant composition — 1. Copolymerization reactivity ratios

Abstract In the present work, low conversion acrylic acid (AA)/vinyl acetate (VAc) copolymerizations were carried out in azeotropic ethanol/water solutions containing 93% in weight of ethanol. Reactivity ratios were determined by several methods and shown to be equal to r AA = 2.6 and r VAc = 0.04.