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Information × Registration Number 0303U003311, 0101U005378 , R & D reports Title Kinetics and mechanisms of negative catalyze of organic compounds oxidation processes and the search of effective antioxidants (bioantioxidants) popup.stage_title Дослідження механізму синергічної дії сумішей ацетилацетонатів металів з фенольними антиоксидантами при інгібіюванні процесів окиснення полімерів Head Nikolaevsky A.N., Registration Date 24-03-2003 Organization Donetsk National University popup.description2 It is established, that ?-diketonates of metals of constant and replaceable valency actively destroy organic hydroperoxides (HP), and reaction goes through an intermediate stage of formation of a complex between reagents which decays as to free radicals, and inactive molecular products. Depending on metal which compound is used, the radical or molecular direction of reaction of decay HP dominates. Distinction of the mechanism of hydroperoxides decay under influence metals acetylacetonates speaks quickening or inhibitory action of such additives on process of autooxidation of polymeric compositions. Metals compounds which suppress a branching of kinetic chains of oxidation, . reduce speed of an expenditure and values of critical concentrations of phenolic antioxidants and show synergism in mixes with phenols in composition epoxy polymers. Inhibitors mixtures stabilize optical and physical and chemical properties of polymers and repeatedly increase the period of their reliable operation. Product Description popup.authors popup.nrat_date 2020-04-02 Close