| 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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Bras, Wim
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2021Data Mining of Polymer Phase Transitions upon Temperature Changes by Small and Wide-Angle X-ray Scattering Combined with Raman Spectroscopycitations
- 2021Data Mining of Polymer Phase Transitions upon Temperature Changes by Small and Wide-Angle X-ray Scattering Combined with Raman Spectroscopycitations
- 2019Monitoring morphology evolution within block copolymer microparticles during dispersion polymerisation in supercritical carbon dioxidecitations
- 2016Confocal depth-resolved micro-X-ray absorption spectroscopy study of chemically strengthened boroaluminosilicate glassescitations
- 2016Atomic layer deposition route to tailor nanoalloys of noble and non-noble metalscitations
- 2015XAS and XES techniques shed light on the dark side of Ziegler-Natta catalysts: Active-site generationcitations
- 2015XAS and XES Techniques Shed Light on the Dark Side of Ziegler–Natta Catalysts: Active‐Site Generationcitations
- 2015Small Angle X-ray Scattering Insights into the Architecture-Dependent Emulsifying Properties of Amphiphilic Copolymers in Supercritical Carbon Dioxidecitations
- 2014Influence of metal-support interaction on the surface structure of gold nanoclusters deposited on native SiO(x)/Si substratescitations
- 2014Synchrotron based in situ characterization during atomic layer deposition
- 2014A high pressure cell for supercritical CO2 on-line chemical reactions studied with x-ray techniquescitations
- 2010Quantifying hydrogel response using laser light scatteringcitations
- 2008Self-assembled poly(4-vinylpyridine) - Surfactant systems using alkyl and alkoxy phenylazophenolscitations
- 2007Autonomous Volume Transitions of a Polybase Triblock Copolymer Gel in a Chemically Driven pH-Oscillator
- 2003Are metastable, precrystallisation, density-fluctuations a universal phenomena?citations
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>