| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Howdle, Steven M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024A facile one step route that introduces functionality to polymer powders for laser sinteringcitations
- 2023Modification of linear polyethylenimine with supercritical CO2 : from fluorescent materials to covalent cross-linkscitations
- 2022Antimicrobial ‘inks’ for 3D printing: block copolymer-silver nanoparticle composites synthesised using supercritical CO2citations
- 2021Amylose/cellulose nanofiber composites for all-natural, fully biodegradable and flexible bioplasticscitations
- 2020Starch/Poly(glycerol-adipate) Nanocomposites: A Novel Oral Drug Delivery Devicecitations
- 2020Low-temperature and purification-free stereocontrolled ring-opening polymerisation of lactide in supercritical carbon dioxidecitations
- 2019Hydrocarbon based stabilisers for the synthesis of cross-linked poly(2-hydroxyethyl methacrylate) particles in supercritical carbon dioxidecitations
- 2019Monitoring morphology evolution within block copolymer microparticles during dispersion polymerisation in supercritical carbon dioxidecitations
- 2014A high pressure cell for supercritical CO2 on-line chemical reactions studied with x-ray techniquescitations
- 2013Porous copolymers of ε-caprolactone as scaffolds for tissue engineeringcitations
- 2013Towards superhydrophobic coatings made by non-fluorinated polymers sprayed from a supercritical solutioncitations
- 2009Continuous flow supercritical chemical fluid deposition of optoelectronic quality CdScitations
- 2009Electrodeposition of metals from supercritical fluidscitations
- 2009Biocompatibility and osteogenic potential of human fetal femur-derived cells on surface selective laser sintered scaffoldscitations
- 2006Surface enhanced Raman scattering using metal modified microstructured optical fiber substratescitations
- 2006Surface enhanced Raman scattering using metal modified microstructured optical fibre substratescitations
Places of action
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article
Monitoring morphology evolution within block copolymer microparticles during dispersion polymerisation in supercritical carbon dioxide
Abstract
<p>Reversible addition-fragmentation chain transfer (RAFT) dispersion polymerisation in supercritical carbon dioxide is an effective process for creating block copolymer microparticles with internal nanostructures. Here we report an alternative synthesis route involving completely independent steps by exploiting the livingness of RAFT-terminated PMMA microparticles and their unique ability to be redispersed in scCO(2). This not only enables a series of block copolymers to be created from a single RAFT dispersion synthesised PMMA homopolymer batch, thus improving reproducibility, but also adds flexibility by allowing the time and concentration requirements for each stage to be decoupled. The internal morphology development and evolution for a series of poly(methyl methacrylate-block-styrene) (PMMA-b-PS) block copolymer microparticles synthesised via this route was monitored via in situ small-angle X-ray scattering (SAXS) using an autoclave with diamond windows. Together with offline kinetics experiments and postmortem transmission electron microscopy imaging, this study provides remarkably detailed insights into block copolymer self-organisation phenomena in scCO(2). Specifically, the time period over which this block copolymer undergoes phase separation before progressing from an arrangement of spheres to lamellae via the hexagonal cylinder phase is elucidated, and the data are used to plot a detailed empirical phase diagram for this block copolymer system in scCO(2).</p>