S. Curia
Green process for green materials: viable low-temperature lipase-catalysed synthesis of renewable telechelics in supercritical CO2
Curia, S.; Barclay, A.F.; Torron, S.; Johansson, M.; Howdle, S.M.
Authors
A.F. Barclay
S. Torron
M. Johansson
Prof. STEVE HOWDLE STEVE.HOWDLE@NOTTINGHAM.AC.UK
Professor of Chemistry
Abstract
We present a novel near ambient temperature approach to telechelic renewable polyesters by exploiting the unique properties of supercritical CO2 (scCO2). Bio-based commercially available monomers have been polymerised and functional telechelic materials with targeted molecular weight were prepared by end-capping the chains with molecules containing reactive moieties in a one-pot reaction. The use of scCO2 as a reaction medium facilitates the effective use of Candida Antarctica Lipase B (CaLB) as a catalyst at a temperature as low as 35 °C, hence avoiding side reactions, maintaining the end-capper functionality and preserving the enzyme activity.
The functionalised polymer products have been characterised by 1H-NMR, MALDI-TOF, GPC and DSC in order to carefully assess their structural and thermal properties.
We demonstrate that telechelic materials can be produced enzymatically at mild temperatures, in a solvent-free system and using renewably sourced monomers without pre-modification, by exploiting the unique properties of scCO2. The macromolecules we prepare are ideal green precursors that can be further reacted to prepare useful bio-derived films and coatings.
Citation
Curia, S., Barclay, A., Torron, S., Johansson, M., & Howdle, S. (2015). Green process for green materials: viable low-temperature lipase-catalysed synthesis of renewable telechelics in supercritical CO2. Philosophical Transactions A: Mathematical, Physical and Engineering Sciences, 373(2057), https://doi.org/10.1098/rsta.2015.0073
Journal Article Type | Article |
---|---|
Publication Date | Nov 16, 2015 |
Deposit Date | Nov 26, 2015 |
Publicly Available Date | Nov 26, 2015 |
Journal | Philosophical Transactions A: Mathematical, Physical and Engineering Sciences |
Print ISSN | 1364-503X |
Electronic ISSN | 1471-2962 |
Publisher | The Royal Society |
Peer Reviewed | Peer Reviewed |
Volume | 373 |
Issue | 2057 |
DOI | https://doi.org/10.1098/rsta.2015.0073 |
Keywords | Azelaic acid, Supercritical CO2, Lipase, Telechelics |
Public URL | https://nottingham-repository.worktribe.com/output/766555 |
Publisher URL | http://rsta.royalsocietypublishing.org/content/373/2057/20150073.abstract |
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