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MARINANGELO, G. Study of the emulsion copolymerization of styrene and butyl acrylate with high solid contents in a semi-batch reactor. 2005. 98f. Dissertation (Mastering) – Escola Politécnica, Universidade de São Paulo, São Paulo, 2005. The aim of this work was the study of the high solid contents emulsion copolymerization of styrene and butyl acrylate in semi-batch process. Copolymerization reactions were undertaken in a glass reactor, and recipes with solid contents up to 64 wt.% were used. Were evaluated the effects of: solid contents on recipe, amounts of acrylic acid and surfactants on recipe and monomer feeding time. The effects were evaluated in terms of conversion, particle mean diameter, and particle concentration, average number of radicals per particle, polymerization rate, viscosity and coagulum content. It was performed a characterization of the particle size distribution for this process. Using experimental observations and literature information, it was applied a mathematical model for this process, with satisfactory agreement with experimental data.

Estudo da copolimerização em emulsão de estireno e acrilato de butila com alto teor de sólidos em reator semicontínuo.