Night-time atmospheric degradation of a series of butyl methacrylates

作者：Teruel Mariano A; Perez Lopez Rocio S; Barnes Ian; Blanco Maria B^*

来源：Chemical Physics Letters, 2016, 664: 205-212.

DOI：10.1016/j.cplett.2016.09.040

• n-Butyl methacrylate
• iso-Butyl methacrylate
• tert-Butyl methacrylate
• NO3 radicals
• Rate coefficients
• Mechanisms
• Tropospheric chemistry

Rate coefficients for the reactions of NO3 with n-butyl methacrylate (k(1)), iso-butyl methacrylate (k(2)) and tert-butyl methacrylate (k(3)) have been determined at 298 K and atmospheric pressure using the relative rate method. The following rate coefficients (x 10(-15) cm(3) molecule(-1) s(-1)) were obtained for the first time: k(1) = (5.5 +/- 2.6), k(2) = (5.8 +/- 2.8) and k(3) = (5.6 +/- 2.5).
The NO3 reactions of these compounds could contribute to the removal of NOx and as NOy reservoirs. The potential importance for the tropospheric nitrogen budget of these reactions is discussed and atmospheric lifetimes for the butyl esters are calculated.

• 出版日期2016-11-1