The comparative effectiveness of some commercial antioxidants as studied by lyoluminescence

Abstract Lyoluminescence is an interesting tool to study the reactivity of different antioxidants towards the free RȮ 2 radicals which are frequently involved in the oxidative processes of different polymeric materials. In the present paper we have used lyoluminescence to characterize the effectiveness of the following commercial phenolic antioxidants: Topanol OC, Irganox 1076, Ionox 220, Etanox 330, Cyanox 2246 and Irganox 1010. The antioxidant efficiency of these products in the thermal oxidation of polyethylene was compared on the basis of the results of oxyluminescence and thermal analysis methods.