Fullerene C60 as an antioxidant for polymers
| Autor: | Eldar B. Zeinalov, Gerhard Koßmehl |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Cumene
chemistry.chemical_classification Fullerene Polymers and Plastics Radical Polymer Condensed Matter Physics chemistry.chemical_compound Reaction rate constant chemistry Natural rubber Mechanics of Materials visual_art Polymer chemistry Materials Chemistry visual_art.visual_art_medium Phenol Polystyrene |
| Zdroj: | Polymer Degradation and Stability. 71:197-202 |
| ISSN: | 0141-3910 |
| DOI: | 10.1016/s0141-3910(00)00109-9 |
| Popis: | The antioxidative activity of fullerene C60 has been studied by model reaction of the initiated oxidation of cumene and also in accelerated tests of the mixtures with polystyrene and polydimethylsiloxane rubber. It was established that the initiation rate of the model oxidation is substantially reduced in the presence of C60. The rate constant for the addition of cumyl radicals to C60 was determined as k(333–353 K)=(2.0 ±0.8)·108 M−1 s−1. In accelerated tests fullerene showed a stabilizing effect comparable with the influence of the sterically-hindered phenol Irganox1076. |
| Databáze: | OpenAIRE |
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