Effect of heat treatment on the reactivity of polyarylene alkylenes

After high temperature oxidation in air, polyarylene methylenes are able to inhibit liquid phase processes of radical polymerization and oxidation of cumene. Polyarylene ethylenes oxidized in air do not have a similar effect. This behaviour is based on various products of thermal of oxidizing breakdown of polyarylene alkylenes. Heat treatment of polyphenoxy phenylene alkylenes in vacuum, in contrast to other polyarylene alkylenes, also results in an ability to inhibit liquid phase processes, which is evidently due to processes of regrouping.