FTIR gas-phase kinetic study on the reactions of some acrylate esters with OH radicals and Cl atoms

SPRINGER HEIDELBERG

Año: 2014 vol. 21 p. 11541 - 11541

crylate esters are α,β-unsaturated esters that contain vinyl groups directly attached to the carbonyl carbon. These compounds are widely used in the production of plastics and resins. Atmospheric degradation processes of these compounds are currently not well understood. The kinetics of the gas phase reactions of OH radicals with methyl 3-methylacrylate and methyl 3,3-dimethylacrylate were determined using the relative rate technique in a 50 L Pyrex photoreactor using in situ FTIR spectroscopy at room temperature (298 ± 2 K) and atmospheric pressure (708 ± 8 Torr) with air as the bath gas. Rate coefficients obtained were (in units cm3 molecule−1 s−1): (3.27 ± 0.33) × 10−11 and (4.43 ± 0.42) × 10−11, for CH3CH═CHC(O)OCH3 and (CH3)2CH═C