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Photooxidation of copolymers of fluorinated olefins and allyl or vinyl ethers
Author(s) -
Gardette JeanLuc,
Posada Fabrice,
Philippart JeanLouis,
Kappler Patrick
Publication year - 1997
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19971150106
Subject(s) - copolymer , vinyl ether , fluorine , methylene , ether , polymer chemistry , chemistry , kinetics , oxygen , reaction mechanism , photochemistry , primary (astronomy) , organic chemistry , catalysis , polymer , physics , quantum mechanics , astronomy
Abstract This article reports the results on the photooxidation mechanisms of two copolymers of fluorinated olefins and allyl or vinyl ethers. It is shown that the presence of the fluorine atoms influences strongly both the orientation of the reaction and the photooxidation kinetics. Due to the neighbouring fluorine atoms, the methylene groups in α‐position of the oxygen of the ether groups are not equivalent regarding oxidation and the secondary carbon becomes more oxidable than the tertiary one. Because these unexpected results were obtained, the study has been extended to non fluorinated polyethers. On the basis of the results obtained, a general mechanism of the primary oxidation of polyethers is given, and the role played by the fluorine atoms on the orientation of the reactions is discussed.