Tuning the Dynamic Properties of Epoxy Vitrimers via Bioinspired Polymer-Nanoparticle Bond Dynamics.

In this work, FeO nanoparticles anchored with dopamine molecules were developed via bioinspired iron-catechol coordination interactions, and the dopamine-modified FeO 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.