ICCAS OpenIR
Co-solvent and pressure effect on the thermal decomposition of 2.2 ' azobis(isobutyronitrile) in supercritical CO2 using UV-Vis spectroscopy
Li, HP; Liu, J; Zhang, HF; Wang, SG; Han, BX; Liu, FF
2001-11-01
Source PublicationJOURNAL OF SUPERCRITICAL FLUIDS
ISSN0896-8446
Volume21Issue:3Pages:227-232
AbstractThe thermal decomposition of 2,2'-azobis(isobutyronitrile) (AIBN) in supercritical CO2 was studied at 335.15 K, and at 12 and 14 MPa by using UV/Vis spectroscopic method. The effect of co-solvents methanol and cyclohexane on the decomposition rate was also investigated. The co-solvents, especially methanol, can accelerate the decomposition considerably, which is attributable to local composition enhancement. The local concentration of the co-solvents around the reaction species was estimated, and the results showed that the local concentration of the cosolvent can be 20 times of that in the bulk, which depends on pressure and co-solvent concentration. (C) 2001 Elsevier Science BN. All rights reserved.
KeywordSupercritical Co2 Co-solvent Thermal Decomposition Pressure Effect 2 2 '-azobis(Isobutyronitrile)
Indexed BySCI
Language英语
WOS IDWOS:000172308200005
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/76992
Collection中国科学院化学研究所
Corresponding AuthorHan, BX
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
2.Hebei Univ Sci & Technol, Dept Chem Engn, Shijiazhuang 050018, Peoples R China
Recommended Citation
GB/T 7714
Li, HP,Liu, J,Zhang, HF,et al. Co-solvent and pressure effect on the thermal decomposition of 2.2 ' azobis(isobutyronitrile) in supercritical CO2 using UV-Vis spectroscopy[J]. JOURNAL OF SUPERCRITICAL FLUIDS,2001,21(3):227-232.
APA Li, HP,Liu, J,Zhang, HF,Wang, SG,Han, BX,&Liu, FF.(2001).Co-solvent and pressure effect on the thermal decomposition of 2.2 ' azobis(isobutyronitrile) in supercritical CO2 using UV-Vis spectroscopy.JOURNAL OF SUPERCRITICAL FLUIDS,21(3),227-232.
MLA Li, HP,et al."Co-solvent and pressure effect on the thermal decomposition of 2.2 ' azobis(isobutyronitrile) in supercritical CO2 using UV-Vis spectroscopy".JOURNAL OF SUPERCRITICAL FLUIDS 21.3(2001):227-232.
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