The variables influencing the rate of the cathodic delamination of polybutadiene from steel in alkali halide solutions are discussed. The bond at the interface arises from the reaction of carboxyl groups in the polybutadiene with hydroxyl groups on the surface of the iron oxide at the interface. It is this bond that is broken by hydroxyl ions generated by the oxygen reduction reaction beneath the coating. The rate controlling step is the rate of charge transfer through the coating to support the oxygen reduction reaction.
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Henry Leidheiser (1987) studied this question.
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