Abstract
The oxidability of low density polyethylene stabilized with several antioxidants was investigated by oxygen uptake. The radiosterilization doses (5, 10 and 20 kGy) were applied for characterization of antioxidant activity of calix[4]arene, Santonox R, Ionox 220, Irganox 1076, Irganox 1081, tri-t-butylphenol and elementary selenium. Their contribution to the radiostability of LDPE is discussed in comparison with control sample. The order of increasing the oxidation induction time was established for depicting the evolution of oxidative degradation in stabilized polyethylene. Keywords: low density polyethylene, stabilization, radiosterilization