Kinetics and Mechanism of the Oxidation of Stressed Polymer

The fundamental property of chemical reactions in solid polymers is the dependence of reaction kinetics on the structural and molecular-dynamical parameters of a matrix. The latter may differ significantly under stress. Current data concerning the kinetics of oxidation of stressed polymers are reviewed in terms of the relation between stressed polymer structure and molecular motion on the one hand and chain radical reaction kinetics on the other. The influence of stretching stress on different steps in the chain autoxidation process and the relation between oxidation kinetics and polymer durability are discussed for the oxidation of polyolefines.

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