Portal de Periódicos da CAPES

Role of metals and metal-deactivators in polymer degradation

1988; Elsevier BV; Volume: 20; Issue: 3-4 Linguagem: Inglês

10.1016/0141-3910(88)90070-5

1873-2321

Zenjiro Osawa,

Advanced Polymer Synthesis and Characterization

The interaction between metals or metallic compounds and polymers is inevitable in the practical use of polymeric articles, and the stability of the polymers is often modified by these materials. Furthermore, the effect of the metallic compounds on the degradation of the polymers is extremely complicated, and is influenced by various factors. This contribution deals with the possible role of metals or metallic compounds in the degradation of polymers, and this is followed by some typical examples of degradation by metallic compounds, mostly commercial pigments and transition metal compounds of stearic acid and acetylacetone, in typical commercial polymers. Recent studies of the inhibition of the copper-catalyzed thermo-oxidative degradation of polyolefins by deactivators, both commercial reagents and novel products, are discussed.