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Experimental methods for estimating the efficiency of stabilizers of various classes-phenols, amines, phosphites etc.-in various model systems both on the base of polymer and without polymer (low molecular) are described. The large experimental material considered is obtained with the help of various physicochemical methods: manometry, spectroscopy, DTA, calorimetry, chemiluminescence, viscosimetry, polarography etc. Determination of regularities in changes of efficiency of stabilizers characterized by various structures and reactivities allows us to choose the most promising ones for practical use and to look for new active stabilizers more reasonably and purposefully. The elaboration of a mathematical model of the oxidation process permits the creation of the base for semi-empirical forecast of the stabilizer properties.

Für die Phenole (I) und (II) werden die Geschwindigkeitskonstanten der Reaktion mit Diphenylpikrylhydrazyl (in Benzol bei 25°C) bestimmt und die Tendenz zur Komplexbildung mit Triäthyl‐ oder Tributylamin (in Benzol) untersucht.

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