Kinetic study of the OH-initiated photo-oxidation of four unsaturated (allyl and vinyl) ethers under simulated atmospheric conditions

Atmospheric degradation of 2-chloroethyl vinyl ether, allyl ether and allyl ethyl ether: Kinetics with OH radicals and UV photochemistry

“…There are some experimental kinetic studies of many different unsaturated ethers with OH radicals (Perry et al, 1977;Thiault et al, 2002;Thiault and Mellouki, 2006;Zhou et al, 2006aZhou et al, , b, 2009Zhou et al, , 2012Peirone et al, 2011), with NO 3 (Scarfogliero et al, 2006Zhou et al, 2006aZhou et al, ,b, 2009Zhou et al, , 2012, and with O 3 (Grosjean and Grosjean, 1998;Zhou et al, 2006aZhou et al, ,b, 2009Zhou et al, , 2012. Moreover, the reactivity between OH radicals and several vinyl ethers has been theoretically investigated as well (Han et al, 2014(Han et al, , 2015.…”

“…Hence, to evaluate the contribution of unsaturated ethers to the radiative forcing of atmosphere, the IR absorption cross sections in the so-called IR atmospheric window (~8e14 mm) are needed. Peirone et al (2011) reported the RE of 2ClEVE, AE, and AEE to be 0.0315, 0.0565, and 0.1294 W m À2 ppbv À1 , respectively. These authors derived the global warming potential (GWP) relative to CO 2 for these compounds using the simplified method described by Pinnock et al (1995) to estimate the direct instantaneous cloudy-sky radiative forcing efficiency and the procedure proposed by Forster et al (2007).…”

“…These authors derived the global warming potential (GWP) relative to CO 2 for these compounds using the simplified method described by Pinnock et al (1995) to estimate the direct instantaneous cloudy-sky radiative forcing efficiency and the procedure proposed by Forster et al (2007). Peirone et al (2011) concluded that GWP for a time horizon (TH) of 20 years for 2ClEVE, AE, and AEE was 0.0121, 0.0245, and 0.1193, respectively, which is several orders of magnitude lower than those of other ethers like dimethyl ether (GWP ¼ 1) or fluorinated ethers (GWP > 100) (ICCP, 2001).…”

“…A discussion on the structure-reactivity relationship is presented by comparison with similar compounds. The absolute k OH at room temperature is compared to the relative one determined by Peirone et al (2011). Additionally, the UV absorption cross sections between 200 and 350 nm were determined in this work for the first time.…”

“…Particularly, for 2ClEVE, allyl ether ((CH 2 ]CHCH 2 ) 2 O, AE), and AEE scarce kinetic information is currently available in the literature. Peirone et al (2011) reported the rate coefficients for the OH-reactions at room temperature and atmospheric pressure using a relative rate technique. To the best of our knowledge, no temperature dependence study on the OH-reactions with 2ClEVE (Reaction R1), AE (Reaction R2) and AEE (Reaction R3) has been performed to date.…”