Emulsion copolymerization of a moderately water-soluble monomer (ethyl acrylate) with a completely water-soluble monomer (methacrylic acid) was initially examined in a batch reaction system. The reaction rates, copolymer composition, and physical properties of the latex product were characterized. Batch reactions were run with various monomer ratios. The latex stability was strongly dependent on both the temperature and the overall fractional conversion. Several continuous processes involving a tubular reactor and/or a continuous stirred-tank reactor were designed and utilized so as to produce a latex product with properties similar to the batch product.