POLYMERIZATION ON SOLID-SURFACES INITIATE D BY CATALYTIC DECOMPOSITION OF POLYMERIC HYDROPEROXIDE

The kinetic features of graft polymerization in the interphase boundar y layer between a solid and liquid were studied for the process initia ted by radicals immobilized on the solid surface. The radicals were fo rmed in the redox reaction between copper naphthenate and adsorbed hyd roperoxide-containing copolymer. The fraction of graft polymer in the total polymer yield is less than unity and depends significantly on th e mechanism of chain termination (recombination and disproportionation ), which is caused by competition between the reaction of chain transf er to the components in bulk and the interaction of radicals immobiliz ed on the solid surface. A mathematical model is proposed that satisfa ctorily describes the regularities observed in the system.