Mathematical Modelling of the Bulk Polymerization in Heterogeneous Systems.

The mathematical model of bulk polymerization for closed two-phase systems is formulated on the basis of a physico-chemical process analysis. It can be adapted to the conditions of precipitation and polymerization by means of the kinetic expressions f//M, f//I, f//1//P and f//2//P. It contains as a special case the process model developed by Crosato-Arnaldi and coworkers for the precipitation polymerization of vinyl chloride. From a study of the model parameters using estimated values results that the model properly reproduces qualitatively the output-time curve of the monomer during the pprecipitation polymerization.