Gas phase kinetics for the ozonolysis of n-butyl methacrylate, ethyl crotonate and vinyl propionate under atmospheric conditions

被引：17

作者：

Gaona Colman, Elizabeth ^{[1
,2
]}

Blanco, Maria B. ^{[1
]}

Barnes, Ian ^{[3
]}

Teruel, Mariano A. ^{[1
]}

机构：

[1] Univ Nacl Cordoba, Fac Ciencias Quim, Inst Invest Fis Quim Cordoba INFIQC, RA-5000 Cordoba, Argentina

[2] Univ Nacl Asunc, Fac Ciencias Exactas & Nat, San Lorenzo, Paraguay

[3] Berg Univ Wuppertal, Phys Chem FBC, Wuppertal, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2013年 / 579卷

关键词：

RATE CONSTANTS; UNSATURATED ESTERS; ORGANIC-COMPOUNDS; OZONE; OH; DEGRADATION; OXIDATION; CHEMISTRY; HYDROXYL; PRODUCTS;

D O I：

10.1016/j.cplett.2013.05.049

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Rate coefficients for the reactions of ozone with n-butyl methacrylate, ethyl crotonate and vinyl propionate have been determined at 298 +/- 1 K and atmospheric pressure. The following room temperature rate coefficients (in cm(3) molecule(-1) s(-1) units) were obtained: k(1)(O-3 + CH2=C(CH3)C(O)OC4H9) = (1.0 +/- 0.3) x 10(-17), k(2)(O-3 + CH3CH=CHC(O)OCH2CH3) = (8.0 +/- 1.8) x 10(-18) and k(3)(O-3 + CH3CH2C(O)OCH=CH2) = (5.3 +/- 1.3) x 10(-18). This is the first kinetic study for these reactions at atmospheric pressure. The effect of substituent groups on the overall rate coefficients is analyzed. Free energy relationships are presented and atmospheric lifetimes are discussed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：11 / 15

页数：5

共 32 条

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