DOI: 10.1016/j.atmosenv.2018.01.055
Scopus记录号: 2-s2.0-85041691931
论文题名: Atmospheric degradation of industrial fluorinated acrylates and methacrylates with Cl atoms at atmospheric pressure and 298 K
作者: Rivela C ; B ; , Blanco M ; B ; , Teruel M ; A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 178 起始页码: 206
结束页码: 213
语种: 英语
英文关键词: Atmospheric simulation chambers
; Cl-initiated oxidation
; Fluoroesters
; Reactivity
; SPME/GG-MS product study
Scopus关键词: Atmospheric pressure
; Chemical reactions
; Chromatography
; Climate change
; Degradation
; Global warming
; Ionization of gases
; Mass spectrometry
; Phase interfaces
; Reactivity (nuclear)
; Atmospheric simulations
; Cl-initiated oxidations
; Flame ionization detection
; Fluoroesters
; Global warming and climate changes
; Hydroxylamine hydrochloride
; Product studies
; Solid-phase microextraction
; Gas chromatography
; 1,1,1,3,3,3 hexafluoroisopropylacrylate
; 1,1,1,3,3,3 hexafluoroisopropylmethacrylate
; 2,2,2 trifluoroethylacrylate
; 2,2,2 trifluoroethylmethacrylate
; acetaldehyde
; acetone
; acrylic acid derivative
; chloride
; chloride ion
; fluorine derivative
; formaldehyde
; hydroxylamine
; industrial chemical
; methacrylic acid derivative
; ozone
; unclassified drug
; acetaldehyde
; acetone
; atmospheric pressure
; chemical property
; chlorine
; degradation
; ester
; experimental apparatus
; extraction method
; fluorocarbon
; formaldehyde
; gas chromatography
; gas phase reaction
; ionization
; mass spectrometry
; oxidation
; ozone
; Article
; atmospheric pressure
; climate change
; degradation
; derivatization
; gas
; greenhouse effect
; photochemistry
; priority journal
; simulation
; solid phase microextraction
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The gas-phase reaction of Cl atom with 2,2,2-trifluoroethylacrylate (k1), 1,1,1,3,3,3-hexafluoroisopropylacrylate (k2), 2,2,2-trifluoroethylmethacrylate (k3) and 1,1,1,3,3,3-hexafluoroisopropylmethacrylate (k4), have been investigated at 298 K and 1 atm using the relative method by gas chromatography coupled with flame ionization detection (GC-FID). The values obtained are (in cm3 molecule−1 s−1): k1(Cl+CH2=CHC(O)OCH2CF3) = (2.41 ± 0.57) × 10−10, k2(Cl+CH2=CHC(O)OCH(CF3)2) = (1.39 ± 0.34) × 10−10, k3(Cl+CH2=C(CH3)C(O)OCH2CF3) = (2.22 ± 0.45) × 10−10, and k4(Cl +CH2=C(CH3)C(O)OCH(CF3)2 = (2.44 ± 0.52) × 10−10. Products identification studies were performed by solid-phase microextraction (SPME) method, with on-fiber products derivatization using o-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine hydrochloride, coupled with gas chromatography with mass spectrometry detection (GC-MS). Chloroacetone, trifluoroacetaldehyde and formaldehyde were observed as degradation products and a general mechanism is proposed. Additionally, reactivity trends and atmospheric implications are discussed. Significant ozone photochemical potentials (POCP) and acidification potentials lead to local and or regional impact of the esters under study although is expected to a have a minor impact on global warming and climate change. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82980
Appears in Collections: 气候变化事实与影响
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作者单位: INFIQC CONICET, Facultad de Ciencias Químicas-Universidad Nacional de Córdoba), Dpto. de Fisicoquímica, Ciudad Universitaria, Córdoba, Argentina
Recommended Citation:
Rivela C,B,, Blanco M,et al. Atmospheric degradation of industrial fluorinated acrylates and methacrylates with Cl atoms at atmospheric pressure and 298 K[J]. Atmospheric Environment,2018-01-01,178