Abstract
In this work, Fe3O4 nanoparticles anchored with dopamine molecules were developed via bioinspired iron-catechol coordination interactions, and the dopamine-modified Fe3O4 surface was linked to the matrix through strong interfacial interactions between the nanoparticles and the epoxy vitrimer. Results showed that the typical dynamic parameters of vitrimer could be readily adjusted in the epoxy vitrimer composites. These findings demonstrate that it is efficient to adjust the dynamic properties of vitrimers by introducing the metal-coordination bonds into epoxy vitrimer networks. The synergy of metal-catechol coordination and transesterification enriched the mechanism of dynamic regulation. In addition, the epoxy vitrimer composites were responsive to temperature and near-infrared light. The scratch could be successfully healed with 1 min on the surface of vitrimer composites under NIR irradiation even for the 1% addition of Fe3O4 nanoparticles. This approach shows potential to be generally applicable to different types of metal-coordination systems.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
