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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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Schlögl, Sandra
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (33/33 displayed)
- 2024Cationic UV-curing of bio-based epoxidized castor oil vitrimers with electrically conductive propertiescitations
- 2024Dual-vat photopolymerization 3D printing of vitrimerscitations
- 2024Reprocessable carbon fiber vitrimer composites: Reclamation and reformatting of carbon fibers for second generation composite materials
- 2024Rapid tooling for rubber extrusion molding by digital light processing 3D printing with dual curable vitrimerscitations
- 2024MetamaterialFindercitations
- 2024Redox cationic frontal polymerization: a rapid curing approach for carbon fiber-reinforced composites with high fiber contentcitations
- 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
- 2023Accelerated Thermo-Catalytic Degradation of Perfluoropolyether (PFPE) Lubricants for Space Applicationscitations
- 2023Ti$_{40}$Zr$_{10}$Cu$_{36}$Pd$_{14}$ bulk metallic glass as oral implant materialcitations
- 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
- 2023Redox cationic frontal polymerizationcitations
- 2023Ti40Zr10Cu36Pd14 bulk metallic glass as oral implant materialcitations
- 2022Influence of morphology and chemical surface composition on electrical conductivity of SiC microspherescitations
- 2022Asymmetric chiral and antichiral mechanical metamaterials with tunable Poisson's ratiocitations
- 2021High resolution additive manufacturing with acrylate based vitrimers using organic phosphates as transesterification catalystcitations
- 2021Structural Model for the Estimation of the Equivalent Permittivity of Nanodielectrics Based on Polyethylene and Epoxy Resins
- 2021Introduction of Photolatent Bases for Locally Controlling Dynamic Exchange Reactions in Thermo-Activated Vitrimerscitations
- 2021Investigating the influence of surface hardness and energy on the perceived stickiness of polymer coatings.
- 2021Role of Organic Phosphates and Phosphonates in Catalyzing Dynamic Exchange Reactions in Thiol-Click Vitrimerscitations
- 2021Functional mechanical metamaterial with independently tunable stiffness in the three spatial directionscitations
- 2020Tailored Interfaces in Fiber-Reinforced Elastomerscitations
- 2020Epoxy-anhydride vitrimers from aminoglycidyl resins with high glass transition temperature and efficient stress relaxationcitations
- 2020Design and characterisation of vitrimer-like elastomeric composites from HXNBR rubbercitations
- 2020Exploiting the Carbon and Oxa Michael Addition Reaction for the Synthesis of Yne Monomerscitations
- 2020Tribological characteristics of medical gloves in contact with human skin and skin equivalentscitations
- 2019Bonded aerospace repairs under tensile loading: Wet chemical surface treatment and selected environmental conditionscitations
- 2018Tailoring the interfaces in glass fiber-reinforced photopolymer compositescitations
- 2017Synthesis and evaluation of new radical photoinitiators bearing trialkoxysilyl groups for surface immobilizationcitations
- 2016Thiol-Ene versus Binary Thiol–Acrylate Chemistrycitations
- 2016Flexible epoxy based composites with enhanced delamination resistance
Places of action
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article
Introduction of Photolatent Bases for Locally Controlling Dynamic Exchange Reactions in Thermo-Activated Vitrimers
Abstract
<p>Vitrimers exhibit a covalently crosslinked network structure, as is characteristic of classic thermosetting polymers. However, they are capable of rearranging their network topology by thermo-activated associative exchange reactions when the topology freezing transition temperature (T<sub>v</sub>) is exceeded. Despite the vast number of developed vitrimers, there is a serious lack of methods that enable a (spatially) controlled onset of these rearrangement reactions above T<sub>v</sub>. Herein, we highlight the localized release of the efficient transesterification catalyst 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) by the UV-induced cleavage of a photolatent base within a covalently crosslinked thiol–epoxy network. Demonstrated with stress relaxation measurements conducted well above the network's T<sub>v</sub>, only the controlled release of TBD facilitates the immediate onset of transesterification in terms of a viscoelastic flow. Moreover, the spatially resolved UV-mediated photoactivation of vitrimeric properties is confirmed by permanent shape changes induced locally in the material.</p>