Kristoffer Kortsen
On-line polymerisation monitoring in scCO2: a reliable and inexpensive sampling method in high pressure applications
Kortsen, Kristoffer; Pacheco, Ana A.C.; Lentz, Joachim C; Taresco, Vincenzo; Howdle, Steven M.
Authors
Ana A.C. Pacheco
Joachim C Lentz
VINCENZO TARESCO VINCENZO.TARESCO@NOTTINGHAM.AC.UK
Nottingham Research Fellow
Prof. STEVE HOWDLE STEVE.HOWDLE@NOTTINGHAM.AC.UK
Professor of Chemistry
Abstract
A versatile and reliable on-line sampling system for polymerisation reactions in supercritical fluids was developed. By withdrawing a small volume of a high-pressure reaction mixture and expanding it in a controlled volume, reliable kinetic data were obtained for a range of reactions in scCO2, avoiding the need for costly equipment or setup modifications. All experiments were carried out in a stainless-steel high-pressure autoclave with mechanical stirring and a volume of 60 ml. With the polymerisation of methyl methacrylate (MMA) in scCO2 being widely adopted for research in the past, the free-radical and RAFT controlled dispersion polymerisations of MMA were analysed in detail using the sampling system as a proof-of-concept. Additionally, initial implementation of the sampling system to a range of different reactions showed the facile applicability of the monitoring method.
Citation
Kortsen, K., Pacheco, A. A., Lentz, J. C., Taresco, V., & Howdle, S. M. (2021). On-line polymerisation monitoring in scCO2: a reliable and inexpensive sampling method in high pressure applications. Journal of Supercritical Fluids, 167, Article 105047. https://doi.org/10.1016/j.supflu.2020.105047
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 14, 2020 |
Online Publication Date | Sep 19, 2020 |
Publication Date | Jan 1, 2021 |
Deposit Date | Sep 24, 2020 |
Publicly Available Date | Sep 20, 2021 |
Journal | The Journal of Supercritical Fluids |
Print ISSN | 0896-8446 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 167 |
Article Number | 105047 |
DOI | https://doi.org/10.1016/j.supflu.2020.105047 |
Keywords | Physical and Theoretical Chemistry; General Chemical Engineering; Condensed Matter Physics |
Public URL | https://nottingham-repository.worktribe.com/output/4922657 |
Publisher URL | https://www.sciencedirect.com/science/article/abs/pii/S0896844620302989 |
Files
Steve Howdle On Line Polymerisation Monitoring
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