Vitrimer composites: current status and future challenges

V Schenk, K Labastie, M Destarac, P Olivier… - Materials …, 2022 - pubs.rsc.org
Thermosets dominate the composite industry owing to their outstanding stiffness to weight
ratio and fatigue resistance. Nevertheless, the possibilities of recycling these materials are …

A highly dynamic covalent polymer network without creep: mission impossible?

F Van Lijsebetten, T Debsharma… - Angewandte Chemie …, 2022 - Wiley Online Library
Dynamic covalent polymer networks provide an interesting solution to the challenging
recyclability of thermosets and elastomers. One of the remaining design constraints …

Catalyst-Free Epoxy Vitrimers Based on Transesterification Internally Activated by an α–CF3 Group

D Berne, F Cuminet, S Lemouzy… - …, 2022 - ACS Publications
Vitrimers are polymer networks in which associative exchange reactions can take place
under specific conditions, thus conferring reprocessability to insoluble materials. Recently …

Lignin-Based Covalent Adaptable Network Polymers─ When Bio-Based Thermosets Meet Recyclable by Design

DB Tiz, FA Vicente, A Kroflič… - … Sustainable Chemistry & …, 2023 - ACS Publications
Covalent adaptable networks (CANs) play an important role in polymer chemistry, as they
provide an innovative link between thermoplastics and thermosets. The breakthrough idea …

Epoxy adhesives with reversible hardeners: controllable thermal debonding in bulk and at interfaces

F Van Lijsebetten, T Maiheu, JM Winne… - Advanced …, 2023 - Wiley Online Library
On‐demand adhesive dismantling has the potential to improve multimaterial product
recycling, but its implementation has been hampered by a critical trade‐off between strong …

Arresting elevated-temperature creep and achieving full cross-link density recovery in reprocessable polymer networks and network composites via nitroxide …

L Li, X Chen, K Jin, MB Rusayyis, JM Torkelson - Macromolecules, 2021 - ACS Publications
Thermosets and thermoset composites constitute an extraordinary challenge for recycling
and participation in a circular economy because their permanent covalent cross-links …

Itaconic acid-based hyperbranched polymer toughened epoxy resins with rapid stress relaxation, superb solvent resistance and closed-loop recyclability

J Zhang, Z Gong, C Wu, T Li, Y Tang, J Wu, C Jiang… - Green …, 2022 - pubs.rsc.org
The development of epoxy vitrimers with excellent overall properties and recyclability has
been a great challenge. In this work, an itaconic acid-based hyperbranched polymer …

Characterising different molecular landscapes in dynamic covalent networks

F Van Lijsebetten, K De Bruycker… - Chemical …, 2022 - pubs.rsc.org
Dynamic covalent networks present a unique opportunity to exert molecular-level control on
macroscopic material properties, by linking their thermal behaviour to the thermodynamics …

Unentangled vitrimer melts: interplay between chain relaxation and cross-link exchange controls linear rheology

RG Ricarte, S Shanbhag - Macromolecules, 2021 - ACS Publications
Vitrimers are polymer networks that engage in dynamic associative exchange reactions.
Their covalent cross-links preserve network connectivity but permit topology fluctuations …

Enriching an Exchangeable Network with One of Its Components: The Key to High-Tg Epoxy Vitrimers with Accelerated Relaxation

S Chappuis, P Edera, M Cloitre, F Tournilhac - Macromolecules, 2022 - ACS Publications
The curing of epoxy-anhydride vitrimers involves anionic copolymerization of epoxide and
anhydride along with anionic homopolymerization of excess epoxide, giving rise to a poly …