Oxidation of Olefins Representing Some Structural Units of GR-S

Autor:	W. C. Warner, J. Reid Shelton
Rok vydání:	1951
Předmět:	chemistry.chemical_classification Olefin fiber Polymers and Plastics Double bond Kinetics General Engineering chemistry.chemical_element Photochemistry Medicinal chemistry Redox Peroxide Oxygen chemistry.chemical_compound chemistry Materials Chemistry Phenyl group Molecule
Zdroj:	Industrial & Engineering Chemistry. 43:1160-1164
ISSN:	1541-5724 0019-7866
DOI:	10.1021/ie50497a047
Popis:	Three olefins were oxidized in the liquid phase with molecular oxygen to determine the kinetics of the oxidation reactions and the relationship to oxidation of rubber. The instantaneous rate of oxidation was found to be related to the analytically determined olefin and peroxide concentrations by the equation : Rate=k (unreacted olefin)(peroxide), where rate equals moles of oxygen per mole of original olefin per hour and the parentheses represent molarities. Presence of a phenyl group was found to affect k, but only in a minor way, indicating that the same fundamental kinetic mechanism applies in both aromatic and aliphatic olefins. The data are consistent with the general kinetic mechanism of Bolland involving oxygen attack at the alpha-methylenic group. However, it appears probable that initial oxygen attack can also occur at the double bond, resulting in the formation of a peroxide biradical, which may then react with other olefin molecules, initiating the usual chain reaction mechanism.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::077b0b3ef66227f554d6a704d9f73016 https://doi.org/10.1021/ie50497a047 Zobrazit plný text záznamu