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The near UV absorption cross-sections and the rate coefficients for the ozonolysis of a series of styrene-like compounds

Paper ID Volume ID Publish Year Pages File Format Full-Text
28294 44068 2008 10 PDF Available
Title
The near UV absorption cross-sections and the rate coefficients for the ozonolysis of a series of styrene-like compounds
Abstract

The UV absorption cross-sections and the rate coefficients for the ozonolysis of styrene, α-methylstyrene, β-methylstyrene, 2-methylstyrene and indene have been investigated. The absorption spectra were measured using a diode array spectrometer over the wavelength range 260–310 nm at 328 K. Large absorption cross-sections (∼10−18 cm2 molecule−1) were observed for the investigated compounds over the wavelength range 260–280 nm, while their absorption cross-sections decreased sharply above 290 nm with values of about 10−20 to 10−21 cm2 molecule−1 around 310 nm. The rate coefficients for the reactions of the aromatic compounds studied and O3 measured in a simulation chamber using both absolute and relative methods at 295 ± 3 K and atmospheric pressure were (in 10−17 cm3 molecule−1 s−1): (1.5 ± 0.3), (1.8 ± 0.4), (3.1 ± 0.6) and (16 ± 4) for styrene, α-methylstyrene, 2-methylstyrene and indene, respectively. The data obtained were used to estimate the lifetimes of the investigated compounds.

Keywords
Aromatics; Styrene; Absorption cross-section; Ozonolysis; Kinetic
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The near UV absorption cross-sections and the rate coefficients for the ozonolysis of a series of styrene-like compounds
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 195, Issue 1, 5 March 2008, Pages 54–63
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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