| 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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Reisinger, David
Polymer Competence Center Leoben (Austria)
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Cationic UV-curing of bio-based epoxidized castor oil vitrimers with electrically conductive propertiescitations
- 2024Cationic UV-curing of bio-based epoxidized castor oil vitrimers with electrically conductive propertiescitations
- 2024Rapid tooling for rubber extrusion molding by digital light processing 3D printing with dual curable vitrimerscitations
- 2024Vitrimer Transition Phenomena from the Perspective of Thermal Volume Expansion and Shape (In)stabilitycitations
- 2024Design of Reversible Adhesives by Using a Triple Function of Ionic Liquidscitations
- 2023Thermally Latent Bases in Dynamic Covalent Polymer Networks and their Emerging Applicationscitations
- 2023On‐Demand Activation of Transesterification by Chemical Amplification in Dynamic Thiol‐Ene Photopolymerscitations
- 2023Sustainable Bio-Based UV-Cured Epoxy Vitrimer from Castor Oilcitations
- 2023Sustainable Bio-Based UV-Cured Epoxy Vitrimer from Castor Oilcitations
- 2021High resolution additive manufacturing with acrylate based vitrimers using organic phosphates as transesterification catalystcitations
- 2021Introduction of Photolatent Bases for Locally Controlling Dynamic Exchange Reactions in Thermo-Activated Vitrimerscitations
Places of action
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article
Thermally Latent Bases in Dynamic Covalent Polymer Networks and their Emerging Applications
Abstract
A novel strategy allowing a temporal control of dynamic bond exchange in covalently cross-linked polymer networks via latent transesterification catalysts is introduced. Obtained by a straight-forward air- and water-tolerant synthesis, the latent catalyst is designed for an irreversible temperature-mediated release of a strong organic base. Its long-term inactivity at temperatures below 50°C provides the unique opportunity to equip dynamic covalent networks with creep resistance and high bond exchange rates, once activated. The presented thermally latent base catalyst is conveniently introducible in readily available building blocks and, as proof of concept, applied in a radically polymerized thiol-ene network. Light-mediated curing is used for 3D printing functional objects on which the possibility of spatially controlled reshaping and welding based on dynamic transesterification are illustrated. Since the catalyst is thermally activated, limitations regarding sample geometry and optical transparency do not apply, which facilitates a transfer to well-established industrial technologies. Consequently, fiber-reinforced and highly filled magneto-active thiol-ene polymer composites are fabricated by a thermal curing approach. The on-demand activation of dynamic transesterification is demonstrated by (magneto-assisted) reshaping experiments, highlighting a wide range of potential future applications offered by the presented concept.