Abstract
The effect of the monomer content in the recipe on the emulsion polymerization of styrene has been studied in a batch reactor, a continuously operated stirred tank reactor (CSTR) and a pulsed packed column (PPC). In a pulsed packed column, which has been developed in the authors' laboratory, a good local agitation is combined with little backmixing. The results of this study show that the maximum volume of the particle phase at which isothermal reactor operation is possible, depends significantly on the particle size distribution. In fact, a limited degree of backmixing appears to have a favourable effect. Therefore, the PPC is a promising reactor for continuous emulsion polymerization, provided there is sufficient radial mixing.
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