EMULSION COPOLYMERIZATION IN MULTICOMPONE NT SYSTEMS OF ACRYLIC-MONOMERS

The kinetics of emulsion copolymerization of butyl acrylate (BA) with beta-acryloxyethyl maleate (AOEM), acrylonitrile (AA), and methacrylic acid (MAA) was studied. The effect of comonomers on the reaction rate depends on the reaction conditions. The copolymerization of butyl acr ylate with AOEM yields a polymer containing unreacted C=C bonds predom inantly in the maleic group. The presence of MAA increases the probabi lity of radical abstraction in the aqueous phase, creates conditions f or the gel effect, and increases the degree of unsaturation of the pol ymer. The degree of unsaturation also depends on the diene concentrati on and the reaction temperature. The rate constants of the copolymeriz ation reaction are determined and a correlation is established between the reaction kinetics and the properties of copolymers.