Yang, L;
Li, Y;
Du, M;
He, Y;
Lan, Y;
Yin, Q;
Zhu, F;
(2022)
Force-Reversible and Energetic Indole-Mg-Indole Cation-pi Interaction for Designing Toughened and Multifunctional High-Performance Thermosets.
Advanced Functional Materials
, 32
(14)
, Article 2111021. 10.1002/adfm.202111021.
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Abstract
Non-covalent crosslinking has provided versatile and affordable solutions for the design of tough soft polymer materials, but it is not applied in stiff high-performance thermosets. Here, the authors report a supramolecular approach for the design of tough high-performance thermosets by using noncovalent sandwich-structural indole-Mg-indole complexes that act as the force-reversible and energetic crosslinking points, evading the inherent trade-off between mechanical strength and ductility for high-performance thermosets. Compared to traditional epoxy polymer materials, the indole-Mg-indole crosslinks of the network enables synchronously enhancement of mechanical strength and ductility owing to the increased interaction-energy and efficient dissociation and reassociation behaviors given by the dynamic indole-Mg-indole complexes, which is quite challenging to achieve by conventional chemical methods. In addition, local manipulation of crosslinking confers the resulting thermosets with multiple fast stimuli-responsive functions, such as recyclability, healability, and adhesion.
| Type: | Article |
|---|---|
| Title: | Force-Reversible and Energetic Indole-Mg-Indole Cation-pi Interaction for Designing Toughened and Multifunctional High-Performance Thermosets |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/adfm.202111021 |
| Publisher version: | https://doi.org/10.1002/adfm.202111021 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | force-reversible interactions; functional polymers; high-performance thermosets |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10140980 |
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