Photo-oxidation of poly(phenylene ether): a reexamination of the mechanism
✍ Scribed by Agnès Rivaton; Patrick Morel
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 898 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0141-3910
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The thermal oxidation and photo-oxidation of poly(2,6-dimethyl-l,4phenylene oxide) have been examined. Oxidation of the plastic results in the evolution of carbon dioxide, nitrogen and traces of hydrogen, the introduction of considerable crosslinking, and increased absorption in the hydroxyl and car
Abstraet--The mechanism of the photo-oxidation of both low density and high density polyethylenes has been studied kinetically. The kinetics are consistent with the view that when substantial quantities of carbonyl compounds are present in the polymers by photolysis of thermally formed hydroperoxide
The oxidation of Ix)ly ( 2,6-dimethyl-C, 4-phenylene ether) (PPE) during polymerization has been examined as a function of molecular weight, using spectroscopic techniques. The visible light absorption and the IR absorption at 1660cm -I increased as the molecular weight decreased. A most probable ch