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

Inhibitory effect of phenothiazine and phenyl-β-naphthylamine 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 a mixture of antioxidants, phenyl-β-naphthylamine (PBN) and phenothiazine (PT) on the oxidation of natural rubber was studied. The inhibitory effect of this mixture on the oxidation of the preliminary thermally treated and subsequently oxidized rubber was found to be smaller than in the case of a direct oxidation. The investigated mixture showed a weakened effect, i.e. antagonism, in the whole range of molar ratios and total starting concentrations. Magnitude of the antagonistic effect of the mixture of antioxidants was expressed by negative values of the index of the relative inhibitory efficiency.

Full paper in Portable Document Format: 294a449.pdf

Chemical Papers 29 (4) 449–454 (1975)