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Effect of Reaction Temperature on the Gel Content of Acrylic Latexes |
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| Authors: | Nicolas Kohut‐Svelko Rosangela Pirri José M. Asua Jose R. Leiza |
| Affiliation: | 1. Institute for Polymer Materials (POLYMAT) and Departamento de Química Aplicada, The University of the Basque Country, Joxe Mari Korta Zentroa, Tolosa Etorbidea 72, 20018 Donostia‐San Sebastián, Spain;2. Arkema, Centre de Recherches de Lacq 24 64170, France |
| Abstract: | The effect of reaction temperature on the kinetics and the microstructure properties of polyacrylates produced by seeded semicontinuous emulsion homopolymerization of two acrylate monomers (butyl acrylate and 2‐ethylhexyl acrylate) initiated by a thermal initiator was investigated. Contrary to what has been reported at higher temperatures (75–95 °C), increasing reaction temperature (from 60 to 80 °C) led to a decrease of the amount of gel content produced in the semicontinuous polymerizations. These results were analyzed by means of a Monte‐Carlo model of the process.  |
| Keywords: | acrylic ester monomer branching crosslinking gel content semibatch emulsion polymerization |