HIGHLIGHTS IN CHEMISTRY AND PHYSICS OF POLYMER STABILIZATION

Deactivation of free radicals, hydroperoxides and harmful solar radiat ion are the principal mechanisms increasing stability of commodity and engineering polymers. The stabilization process is accompanied by tra nsformations of individual additives. New compounds influence specific ally the integral protecting mechanism. Products contributing to the s tability are most beneficial. Mechanistic data are used for optimisati on of the inherent chemical efficiency and physical persistence and fo r explanation of deactivation of stabilizers.