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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
Autonomous Volume Transitions of a Polybase Triblock Copolymer Gel in a Chemically Driven pH-Oscillator
Abstract
A pH‐responsive ABA triblock copolymer, comprising poly(methyl methacrylate)‐block‐poly(2‐(diethylamino)ethyl methacrylate)‐block‐poly(methyl methacrylate) [PMMA‐b‐PDEA‐b‐PMMA], has been cast into thin films with a well‐defined microstructure. Small Angle X‐ray Scattering (SAXS) and Atomic Force Microscopy (AFM) studies confirm that this copolymer forms a hydrogel consisting of PMMA spheres embedded within a polybase PDEA matrix, with the PMMA domains acting as physical cross‐links. The hydrogel has a pH‐reversible coil‐globule transition at around pH 4.5. This responsive physical property was exploited by immersing a sample of copolymer hydrogel in an aqueous solution containing a cyclic pH‐oscillating reaction, whereby the pH was continuously oscillated above and below the transition pH so as to induce autonomous volume transitions. The changes in microscopic and macroscopic length scales correlate closely during (de)swelling cycles, with affine behaviour occurring over five orders of magnitude.