| 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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Topham, Paul D.
Aston University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024Low cytotoxicity, antibacterial property, and curcumin delivery performance of toughness-enhanced electrospun composite membranes based on poly(lactic acid) and MAX phase (Ti3AlC2)citations
- 2024Block copolymer synthesis in ionic liquid via polymerisation-induced self-assembly: A convenient route to gel electrolytescitations
- 2024Harnessing Cytosine for Tunable Nanoparticle Self-Assembly Behavior Using Orthogonal Stimulicitations
- 2023Triggered Polymersome Fusioncitations
- 2023In Situ Compatibilized Blends of PLA/PCL/CAB Melt-Blown Films with High Elongation: Investigation of Miscibility, Morphology, Crystallinity and Modellingcitations
- 2022Heterotelechelic homopolymers mimicking high χ – ultralow N block copolymers with sub-2 nm domain sizecitations
- 2021The influence of structure and morphology on ion permeation in commercial silicone hydrogel contact lensescitations
- 2020Physical and thermal properties of l-lactide/ϵ-caprolactone copolymerscitations
- 2020Physical and thermal properties of l-lactide/ϵ-caprolactone copolymers:the role of microstructural design
- 2019Managing local order in conjugated polymer blends via polarity contrastcitations
- 2019In Situ Small-Angle X-ray Scattering Studies During Reversible Addition–Fragmentation Chain Transfer Aqueous Emulsion Polymerizationcitations
- 2018Biodegradable compatibilized poly(L-lactide)/thermoplastic polyurethane blends:design, preparation and property testing
- 2018Biodegradable compatibilized poly(L-lactide)/thermoplastic polyurethane blendscitations
- 2018Highly Ordered Titanium Dioxide Nanostructures via a Simple One Step Vapor Inclusion Method in Block Copolymer Films
- 2018Highly Ordered Titanium Dioxide Nanostructures via a Simple One Step Vapor Inclusion Method in Block Copolymer Filmscitations
- 2018Hydrophobic and Hydrophilic Effects on Water Structuring and Adhesion in Denture Adhesivescitations
- 2017Tuneable denture adhesives using biomimetic principles for enhanced tissue adhesion in moist environmentscitations
- 2017Polymer strategies in perovskite solar cellscitations
- 2017Evolution of microphase separation with variations of segments of sequence-controlled multiblock copolymerscitations
- 2014Controlled RAFT polymerization and zinc binding performance of catechol-inspired homopolymerscitations
- 2014Controlled synthesis and processing of a poly(L-lactide-co-ε-caprolactone) copolymer for biomedical use as an absorbable monofilament surgical suturecitations
- 2014Identification of optically clear regions of ternary polymer blends using a novel rapid screening methodcitations
- 2013Direct observation of morphological development during the spin-coating of polystyrene-poly(methyl methacrylate) polymer blendscitations
- 2013In situ studies of phase separation and crystallization directed by Marangoni instabilities during spin-coatingcitations
- 2013Directed phase separation of PFOcitations
- 2011In situ imaging and height reconstruction of phase separation processes in polymer blends during spin coatingcitations
- 2010Quantifying hydrogel response using laser light scatteringcitations
- 2008Facile Synthesis of Well-Defined Hydrophilic Methacrylic Macromonomers Using ATRP and Click Chemistrycitations
- 2007Autonomous Volume Transitions of a Polybase Triblock Copolymer Gel in a Chemically Driven pH-Oscillator
Places of action
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article
In Situ Small-Angle X-ray Scattering Studies During Reversible Addition–Fragmentation Chain Transfer Aqueous Emulsion Polymerization
Abstract
Polymerization-induced self-assembly (PISA) is a powerful platform technology for the rational and efficient synthesis of a wide range of block copolymer nano-objects (e.g., spheres, worms or vesicles) in various media. In situ small-angle X-ray scattering (SAXS) studies of reversible addition–fragmentation chain transfer (RAFT) dispersion polymerization have previously provided detailed structural information during self-assembly (see M. J. Derry et al., Chem. Sci. 2016, 7, 5078–5090). However, conducting the analogous in situ SAXS studies during RAFT aqueous emulsion polymerizations poses a formidable technical challenge because the inherently heterogeneous nature of such PISA formulations requires efficient stirring to generate sufficiently small monomer droplets. In the present study, the RAFT aqueous emulsion polymerization of 2-methoxyethyl methacrylate (MOEMA) has been explored for the first time. Chain extension of a relatively short non-ionic poly(glycerol monomethacrylate) (PGMA) precursor block leads to the formation of sterically-stabilized PGMA-PMOEMA spheres, worms or vesicles, depending on the precise reaction conditions. Construction of a suitable phase diagram enables each of these three morphologies to be reproducibly targeted at copolymer concentrations ranging from 10 to 30% w/w solids. High MOEMA conversions are achieved within 2 h at 70 °C, which makes this new PISA formulation well-suited for in situ SAXS studies using a new reaction cell. This bespoke cell enables efficient stirring and hence allows in situ monitoring during RAFT emulsion polymerization for the first time. For example, the onset of micellization and subsequent evolution in particle size can be studied when preparing PGMA29-PMOEMA30 spheres at 10% w/w solids. When targeting PGMA29-PMOEMA70 vesicles under the same conditions, both the micellar nucleation event and the subsequent evolution in the diblock copolymer morphology from spheres to worms to vesicles are observed. These new insights significantly enhance our understanding of the PISA mechanism during RAFT aqueous emulsion polymerization.