Process for the partial or complete oxidation of one or several thiocarbonylthio termini of polymers obtained by radical polymerization controlled by reversible addition-fragmentation

摘要

A method for the partial or complete oxidation of one or more thiocarbonylthio end groups of a polymer obtained by radical polymerisation controlled by reversible addition-fragmentation with the aid of thiocarbonylthio reagents, involves contacting the polymer with ozone-containing gas so that the ozone reacts with the thiocarbonylthio groups. An independent claim is also included for polymers obtained by this method.