Partly sulfonated polyolefins represent very effective reactive stabilizers
for heterophase polymerizations. For instance, under proper chosen conditi
ons, the efficiency of these stabilizers in emulsion polymerization, measur
ed in particle surface area stabilized per: gram surfactant, is higher than
that for sodium dodecyl sulfate. H-1 NMR measurements prove that the stabi
lizers will be almost completely covalently bound to the latex particles in
the course of the polymerization.