ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Inhibitory effect of a mixture of phenyl-β-naphthylamine, phenothiazine, and α,α-diphenyl-β-picrylhydrazyl on the oxidation of natural rubber

J. Hrivíková, A. Hrivík, and V. Kellö

Department of Physical Chemistry, Slovak Technical University, 880 37 Bratislava

Abstract:  The effect of concentration of a ternary mixture of antioxidants DPPH—PBN—PT on the oxidation of extracted natural rubber was investigated. At the equimolar ratio, a strengthened inhibitory effect of the mixture was observed with respect to the additivity of individual components or binary mixtures of the antioxidants DPPH—PBN and DPPH-PT. The course of the observed induction periods as a function of concentration of the original mixture is similar to that of additive induction periods. I t was con­firmed that DPPH is a synergistic component of the ternary inhibitory system.

Full paper in Portable Document Format: 294a455.pdf

Chemical Papers 29 (4) 455–458 (1975)