Mechanism and efficiency of the inhibiting action of 1,3-di-(4-phenylaminophenoxy)-2-propanol and 2,6-di-tert-butyl-4-methylphenol in the oxidation of methyl linoleate

The mechanism of the inhibiting action of the aromatic amine 1,3-di-(4-phen ylaminophenoxy)-2-propanol and the sterically hindered phenol 2,6-di-tert-b utyl-4-methylphenol (ionol) in oxidizing methyl linoleate was studied. The key reactions in the mechanism of inhibition by the antioxidants were ident ified, and the corresponding kinetic parameters were estimated. The mechani sms of the action of the antioxidants were compared, and the reasons for th e main differences in their efficiency were established.