R. Parilti
Mild synthesis of poly(HEMA)-networks as well-defined nanoparticles in supercritical carbon dioxide
Parilti, R.; Alaimo, D.; Grignard, B.; Boury, F.; Howdle, S.M.; Jerome, C.
Authors
D. Alaimo
B. Grignard
F. Boury
Prof. STEVE HOWDLE STEVE.HOWDLE@NOTTINGHAM.AC.UK
Professor of Chemistry
C. Jerome
Abstract
Free-radical dispersion polymerisation of 2-hydroxyethyl methacrylate was carried out in supercritical carbon dioxide (scCO2) in the presence of stabilisers based on polyethylene oxide (PEO) and poly(heptadecafluorodecyl acrylate) (PFDA). Different architectures of copolymers (random, palm-tree and diblock) were tested for their surface tension, cloud point and as a stabilising agent. The diblock architecture was found to be the best candidate resulting in poly(HEMA) spherical particles with a size of 316 nm. Furthermore, the effect of the CO2-phobic block (PEO) in the diblock architecture was investigated by using three different chain lengths (1000, 2000, 5000 g mol−1). By optimizing the stabiliser composition and structure, mild reaction conditions have been identified allowing us to obtain well-defined spherical cross-linked poly(HEMA) particles with a mean diameter of unprecedented low size (216 nm) at a temperature as low as 35 °C.
Citation
Parilti, R., Alaimo, D., Grignard, B., Boury, F., Howdle, S., & Jerome, C. (2017). Mild synthesis of poly(HEMA)-networks as well-defined nanoparticles in supercritical carbon dioxide. Journal of Materials Chemistry B, 5, https://doi.org/10.1039/C7TB00740J
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 25, 2017 |
Publication Date | Jun 26, 2017 |
Deposit Date | Sep 8, 2017 |
Publicly Available Date | Mar 29, 2024 |
Journal | Journal of Materials Chemistry B |
Print ISSN | 2050-750X |
Electronic ISSN | 2050-750X |
Publisher | Royal Society of Chemistry |
Peer Reviewed | Peer Reviewed |
Volume | 5 |
DOI | https://doi.org/10.1039/C7TB00740J |
Public URL | https://nottingham-repository.worktribe.com/output/868488 |
Publisher URL | http://pubs.rsc.org/is/content/articlelanding/2017/tb/c7tb00740j#!divAbstract |
Files
Final submitted MS.pdf
(1.1 Mb)
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