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Information × Registration Number 0201U003862, 0198U005568 , R & D reports Title Ecological safety antioxidants of the organical substances, the materials at their base and physic-chemical investigations stabilisation processes popup.stage_title Head Nikolayevs'kyj A.M., Registration Date 05-05-2001 Organization Donetsk National University popup.description2 The subject of investigation — derivatives of rodanin, medicine plants extracts, mixture of metals acetylacetonats with phenols as inhibitors of organical substances oxidation. The aim of investigation — searching of new effective anti- oxidants and mixtures with аntioxidants properties for inhibition oxidation processes of hydrocarbons, polymers, fats. The methods of investigation - chemyluminiscence, gasvolumometric measurements, extraction, photocolorymetric measurements, IR-spectroscopy, polaro-graphy etc.Results — rodanin and its derivatives were investigated as antioxidants. The parameters dependence of substances antioxi-dant action from composition and structure of molecules were studied. The mechanism of inhibition of oxidative turns, which take place under different regimes of oxidation were established. Combined action effective inhibitors of oxidation were revealed among investigated rodanins optimalical conditions of obtain-ment of biological-active substances natural mixtures with anti-o xidant properties were determined by extraction from medicine plants. The effective antioxidants were obtained out of San-guisorba officinalis L. root, oak bark, Arctostaphylos uva ursi Spr. leaves and others under standart conditions. It was shown, that proposed antioxidants and mixtures increase antioxidative stability both model systems and real materials significantly. The new type of stabilizating systems (mixtures hindered phe-nols with zinc acetylacetonate or oxide) for polymers, which use as base of fiber-optical systems of transfer information materiales, was worked out. The results of the research may be used in the food, pharmaceutical, chemical industries and in the production of polymer materials for stabilization of products. Product Description popup.authors popup.nrat_date 2020-04-02 Close