Abstract
A theoretical study has been made of the influence of hydraulic action on an emulsion polymerization system based on ethyl acrylate (first stage) located in the narrow clearance between two coaxial cylinders, given a fixed rotor speed. It is shown that a definite intensity of hydraulic action may lead to monomer drops being dispersed to a size that is commensurate with polymer-monomer particle sizes. Experiments show that these conditions result in a higher rate of polymerization in the initial stage, and alter the mode of latex particle size distribution. It is proposed that this effect is due to an increase in the number of polymerization centres on account of the polymerization taking place partly in highly dispersed drops of monomeric emulsion. Optimal conditions have been found for ethyl acrylate polymerization resulting in the formation of concentrated (50 mass %) and colloidal-stable-latices.
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