Abstract
Anomalous polymer particles with a partial protuberance like “octopus ocellatus” were produced under alkaline conditions by seeded emulsion copolymerization for styrene and butyl acrylate, with styrene-butyl acrylate-methacrylic acid terpolymer emulsion as seed. The mechanism of production of the polymer particles was studied. By transmission electron microscopic observation of the particles at each conversion, it was observed that the anomalous polymer particles were produced by partial growth of each of the individual seed particles throughout polymerization. Ionization of the carboxyl groups and low viscosity in the growing particles during the process of polymerization were important factors for partial growth.
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Part CIII of the series “Studies on Suspension and Emulsion”.
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Okubo, M., Kanaida, K. & Matsumoto, T. Production of anomalously shaped carboxylated polymer particles by seeded emulsion polymerization. Colloid & Polymer Sci 265, 876–881 (1987). https://doi.org/10.1007/BF01421815
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DOI: https://doi.org/10.1007/BF01421815