Abstract
Semicontinous emulsion polymerization of ethyl acrylate/ethyleneglycol dimethacrylate (90/10) and butyl acrylate/ethyleneglycol dimethacrylate (90/10) was studied. In the process a monomer emulsion feed was used, and the particle growth and the particle flocculation were found to be a competitive process. This was affected by distribution of water phase as well as by the distribution of emulsifier between the initial reactor charge and the emulsion of monomers. Several periods of particle generation were found during the process. The extent of particle flocculation was strongly affected by electrolyte concentration in the system and by copolymerization of acid groups containing comonomers.
Published Version
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