Abstract
A study has been made of the influence of external loads on the rate of ozone oxidation of oriented high- and low-density polyethylene specimens, under regimes of constant stress and strain. It is shown that tensile stress has an accelerating effect on the kinetics of H atom abstraction. The higher sensitivity to loading of low density PE specimens compared with high density specimens is noted, and a relationship between loading sensitivity and MWD is observed for PE.
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