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@ARTICLE{Bunkan:857259,
author = {Bunkan, A. J. C. and Srinivasulu, G. and Amedro, D. and
Vereecken, L. and Wallington, T. J. and Crowley, J. N.},
title = {{P}roducts and mechanism of the {OH}-initiated
photo-oxidation of perfluoro ethyl vinyl ether, {C} 2 {F} 5
{OCF}={CF} 2},
journal = {Physical chemistry, chemical physics},
volume = {20},
number = {16},
issn = {1463-9084},
address = {Cambridge},
publisher = {RSC Publ.66479},
reportid = {FZJ-2018-06488},
pages = {11306 - 11316},
year = {2018},
abstract = {The OH-initiated photo-oxidation of perfluoro ethyl vinyl
ether (C2F5OCF[double bond, length as m-dash]CF2, PEVE) in
air (298 K, 50 and 750 Torr total pressure) was studied in a
photochemical reactor using in situ detection of PEVE and
its products by Fourier transform IR absorption
spectroscopy. The relative rate technique was used to derive
the rate coefficient, k1, for the reaction of PEVE with OH
as k1 = (2.8 ± 0.3) × 10−12 cm3 molecule−1 s−1. The
photo-oxidation of PEVE in the presence of NOx at 1 bar
results in formation of C2F5OCFO, FC(O)C(O)F and CF2O in
molar yields of 0.50 ± 0.07, 0.46 ± 0.07 and 1.50 ± 0.22,
respectively. FC(O)C(O)F and CF2O are formed partially in
secondary, most likely heterogeneous processes. At a reduced
pressure of 50 Torr, the product distribution is shifted
towards formation of FC(O)C(O)F, indicating the important
role of collisional quenching of initially formed
association complexes, and enabling details of the reaction
mechanism to be elucidated. An atmospheric photo-oxidation
mechanism for PEVE is presented and the environmental
implications of PEVE release and degradation are discussed.},
cin = {IEK-8},
ddc = {540},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {243 - Tropospheric trace substances and their
transformation processes (POF3-243)},
pid = {G:(DE-HGF)POF3-243},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29637965},
UT = {WOS:000431821800068},
doi = {10.1039/C8CP01392F},
url = {https://juser.fz-juelich.de/record/857259},
}