Abstract

A study was made of the case of radical polymerization of a dispersively filled liquid monomer with chain termination at the filler surface. The kinetics of the radical polymerization of styrene were investigated by calorimetric analysis. The monomer was filled with oxides of zinc, titanium and their blends. It was found that zinc oxide acts as a strong inhibitor. The kinetic model of polymerization in the presence of a strong inhibitor describes the polymerizate with a maximum filler content as a set of microreactors. Parameters characterizing properties of the solid inhibitor were determined, including the surface density of the active centres, the termination probability and the radical trap cross-sectional area.

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