Abstract
AbstractA detailed model is presented to analyze the phase inversion in the dispersion polymerizations of methyl methacrylate (MMA) in non‐polar solvents. The reaction conditions under which the polymer particles lose stability and the reaction system phase inverts are investigated. At high solvent/monomer ratios, well‐defined micron‐sized polymer particles are produced even in the absence of stabilizer. However, low solvent/monomer ratios or stabilizer concentrations yield porous structures after a massive agglomeration of the precipitating particles. To quantify the phase inversion, a population balance equation (PBE) is derived and combined with a kinetic/thermodynamic model to develop a procedure capable of predicting the system phase inversion curve. The model predictions agree well with the experimental results. magnified image
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