Chemiluminescence study of thermal and photostability of polyethylene

Abstract

The oxidation stability of low density polyethylene to UV light has been studied in the presence of various types of antioxidants (hindered phenols, HALS and synthetic N-alkylamines). A chemiluminescence procedure has been applied. Kinetic parameters of oxidation are obtained from isothermal measurements at 180 °C. The synergistic effect of antioxidant couples is examined and a stabilisation order is determined. © 1999 Society of Chemical Industry