Abstract

An iterative analysis is presented which permits the step-by-step computation of the reaction rates, conversions, temperatures, pressures, and other variables during the runaway stage of a thermally initiated styrene polymerization contained in a sealed reactor. The highlight of this analysis is a derivation for the reaction rate as a function of reactant temperature and conversion. Based on a heat transfer analysis of some tests conducted at ambient temperatures ranging to 200°C, the iterative analysis predicted the observed reaction rates, pressures, rates of pressure rise, and temperatures within order-of-magnitude accuracies. We feel that this type of analysis may be extended to some other monomer-polymer systems.

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