Abstract
1. The p-phenylenediamine derivatives are effective antioxidants for oxidation of 1-nonene, being more active in this respect than either the monofunctional aromatic amines and phenols or the quinones and nitroxylradical alkyl-radical acceptors. 2. In distinction to the monofunctional aromatic amines and phenols, the antioxidant activity of the p-phenylenediamine derivatives increases as the oxygen pressure is reduced. 3. The p-phenylenediamine derivatives do not show synergistic effects when mixed with alkyl-radical acceptors. 4. The inhibiting action of the p-phenylenediamines can be explained by assuming these compounds to form autosynergistic mixtures with their reaction products, quinonediimines, capable of reacting with alkyl radicals.
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Schedule a callMore From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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