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Volumn 95, Issue 5, 2010, Pages 782-791

Polypropylene degradation: Theoretical and experimental investigations

Author keywords

DFT calculations; Peroxides activities; Polypropylene degradation; Radical chemistry

Indexed keywords

DEGRADATION STUDY; DFT CALCULATION; DFT CALCULATIONS; EXPERIMENTAL INVESTIGATIONS; H-ABSTRACTION; PEROXIDE DEGRADATION; POLYPROPYLENE DEGRADATION; PRIMARY CARBON; RADICAL CHEMISTRY; TERTIARY CARBON ATOM; THERMAL DECOMPOSITIONS;

EID: 77949908018     PISSN: 01413910     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.polymdegradstab.2010.02.006     Document Type: Article
Times cited : (62)

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    • Polypropylene sold by Aldrich is reported as free of antioxidants. However, in any case, the concentration of antioxidants should not be larger than several ppm. Consequently, taking into account the large amount of peroxides and oxygen applied in the experiments, the antioxidant will play a minor role in the reactivity. In any case, its role will be to reduce the amount of radical species and then to delay the initiation of the degradation as long as it would not have been totally consumed. The results reported in this article show unambiguously that antioxidants play no major role
    • Polypropylene sold by Aldrich is reported as free of antioxidants. However, in any case, the concentration of antioxidants should not be larger than several ppm. Consequently, taking into account the large amount of peroxides and oxygen applied in the experiments, the antioxidant will play a minor role in the reactivity. In any case, its role will be to reduce the amount of radical species and then to delay the initiation of the degradation as long as it would not have been totally consumed. The results reported in this article show unambiguously that antioxidants play no major role.
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