Zhou Shouming, Barnes Ian, Zhu Tong, Benter Thorsten
State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Science, Peking University, 100871 Beijing, China.
J Phys Chem A. 2009 Feb 5;113(5):858-65. doi: 10.1021/jp809732u.
Kinetic studies have been performed on the reactions of OH and NO(3) radicals and ozone with three ethyleneglycol vinyl ethers (EGVEs), that is, ethyleneglycol monovinyl ether (EGMVE, HOCH(2)CH(2)OCH=CH(2)), ethyleneglycol divinyl ether (EGDVE, H(2)C=CHOCH(2)CH(2)OCH=CH(2)), and diethyleneglycol divinyl ether (DEGDVE, H(2)C=CHOCH(2)CH(2)OCH(2)CH(2)OCH=CH(2)). Using a relative rate technique, rate coefficients have been determined for the reactions in a 405 L borosilicate glass chamber at (298 +/- 3) K in one atmosphere of synthetic air using in situ FTIR spectroscopy to monitor the reactants. The following rate coefficients (in units of cm(3) molecule(-1) s(-1)) were obtained: (1.04 +/- 0.22) x 10(-10), (1.23 +/- 0.33) x 10(-10), and (1.42 +/- 0.30) x 10(-10) for the reaction of OH with EGMVE, EGDVE, and DEGDVE, respectively; (2.23 +/- 0.46) x 10(-12), (1.95 +/- 0.50) x 10(-12), and (6.14 +/- 1.38) x 10(-12) for the reaction of NO(3) with EGMVE, EGDVE, and DEGDVE, respectively; and (2.02 +/- 0.41) x 10(-16), (1.69 +/- 0.41) x 10(-16), and (2.70 +/- 0.56) x 10(-16) for ozonolysis of EGMVE, EGDVE, and DEGDVE, respectively. Using the kinetic rate data, tropospheric lifetimes for EGMVE, EGDVE, and DEGDVE with respect to their reactions with OH, NO(3), and ozone have been estimated for typical ambient air concentrations of these oxidants.
已对羟基自由基（OH）、硝酸根自由基（NO₃）和臭氧与三种乙二醇乙烯基醚（EGVE）的反应进行了动力学研究。这三种乙二醇乙烯基醚分别是乙二醇单乙烯基醚（EGMVE，HOCH₂CH₂OCH=CH₂）、乙二醇二乙烯基醚（EGDVE，H₂C=CHOCH₂CH₂OCH=CH₂）和二甘醇二乙烯基醚（DEGDVE，H₂C=CHOCH₂CH₂OCH₂CH₂OCH=CH₂）。采用相对速率技术，在一个大气压的合成空气中，于(298 ± 3)K的温度下，在一个405升的硼硅酸盐玻璃反应室内测定了这些反应的速率系数，通过原位傅里叶变换红外光谱（FTIR）监测反应物。得到了以下速率系数（单位为cm³·分子⁻¹·秒⁻¹）：OH与EGMVE、EGDVE和DEGDVE反应的速率系数分别为(1.04 ± 0.22)×10⁻¹⁰、(1.23 ± 0.33)×10⁻¹⁰和(1.42 ± 0.30)×10⁻¹⁰；NO₃与EGMVE、EGDVE和DEGDVE反应的速率系数分别为(2.23 ± 0.46)×10⁻¹²、(1.95 ± 0.50)×10⁻¹²和(6.14 ± 1.38)×10⁻¹²；EGMVE、EGDVE和DEGDVE臭氧分解反应的速率系数分别为(2.02 ± 0.41)×10⁻¹⁶、(1.69 ± 0.41)×10⁻¹⁶和(2.70 ± 0.
