Polymerization with Presence of Polymers

II. Emulsion Polymerization of Vinyl Acetate with Presence of Partially Saponified Polyvinyl Acetate

Abstract

The latex obtained by emulsion polymerization of vinyl acetate with presence of partially saponified polyvinylacetate is found to be more stable and also more viscous than that formed with presence of completely saponified polyvinyl alcohol, reported in the first of these series. The grafting efficiency of the partially saponified polyvinyl alcohol is relatively larger than that of polyvinyl alcohol, in the reverse order of chain transfer constants in solution polymerization. This reversal order is considered to attribute in the colloidal behavior of the heterogeneous polymerization.