Kinetics of the Reactions of NO3 Radical with Methacrylate Esters

The Journal of Physical Chemistry. a
Li ZhouAbdelwahid Mellouki

Abstract

Two different experimental methods (relative rate and absolute rate methods) were used to measure the rate coefficients for the reactions of NO3 radical with six methacrylate esters: methyl methacrylate (MMA, k1), ethyl methacrylate (EMA, k2), propyl methacrylate (PMA, k3), isopropyl methacrylate (IPMA, k4), butyl methacrylate (BMA, k5), and isobutyl methacrylate (IBMA, k6). In the relative rate method, the loss of the esters relative to that of a reference compound was followed in a 7300 L Teflon-walled chamber at 298 ± 2 K and 1000 ± 5 hpa. In the absolute method, the temporal profiles of NO3 and N2O5 were followed by using a dual channel cavity ring-down spectrometer in the presence of an excess of ester in the 7300 L chamber. The rate coefficients from these two methods (weighted averages) in the units of 10-15 cm3 molecule-1 s-1 at 298 K are k1 = 2.98 ± 0.35, k2 = 4.67 ± 0.49, k3 = 5.23 ± 0.60, k4 = 7.91 ± 1.00, k5 = 5.91 ± 0.58, and k6 = 6.24 ± 0.66. The quoted uncertainties are at the 2σ level and include estimated systematic errors. Unweighted averages are also reported. In addition, the rate coefficient k7 for the reaction of NO3 radical with deuterated methyl methacrylate (MMA-d8) was measured by using the relative ra...Continue Reading

References

Jul 28, 2009·Environmental Science and Pollution Research International·María Pilar Martín PorreroMaria Sagrario Salgado Muñoz
Feb 21, 2005·Physical Chemistry Chemical Physics : PCCP·Carlos E Canosa-MasRichard P Wayne
Feb 3, 2011·Environmental Science and Pollution Research International·M Sagrario SalgadoBeatriz Cabañas
Aug 22, 2012·Chemical Society Reviews·Steven S Brown, Jochen Stutz
Apr 14, 2016·The Journal of Physical Chemistry. a·Amélie LauraguaisJean-Claude Rayez

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Citations

Feb 13, 2019·Physical Chemistry Chemical Physics : PCCP·Li ZhouAbdelwahid Mellouki
Oct 31, 2019·Physical Chemistry Chemical Physics : PCCP·A R RavishankaraAbdelwahid Mellouki
Jun 28, 2018·Environmental Science and Pollution Research International·Jianqiang ZhuLin Du
Mar 10, 2021·The Journal of Physical Chemistry. a·Maofa GeMingyuan Liu
Jul 13, 2020·Journal of Environmental Sciences (China)·Yangang RenAbdelwahid Mellouki
Feb 2, 2018·The Journal of Physical Chemistry. a·Shuyan WangWenxing Wang
Aug 25, 2017·The Journal of Physical Chemistry. a·Jianqiang ZhuLin Du
Jul 17, 2020·The Journal of Physical Chemistry. a·Franz M GeigerAndrew J Orr-Ewing

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