Abstract

A fractional factorial screening design of experiments was conducted to identify the effects of five variables, i.e., styrene/butyl acrylate ratio, methacrylic acid content, pH, emulsifier content, and chain transfer agent content on various product properties in the monomer-starved semi-batch emulsion copolymerization of styrene/butyl acrylate. The impact of these variables on the methacrylic acid (MAA) distribution in the latex, the average latex particle diameter, the molecular weight and distribution of the polymer products, the glass transition temperature (Tg) of the polymer, and the coating adhesion to a plastic substrate was studied.

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