Abstract: At present, to realize the sustainable development of resources and environmental protection, the recycling and reuse of plastic and rubber products is a topic of great concern in the industry and scientific research fields. Vitrimer materials can realize the rearrangement of the network topology while maintaining the stability of the cross-linked structure. It combines flexible covalent cross-linked network properties, strong mechanical and thermodynamic properties with excellent reprocessability. Vitrimer material combines the reconfigurability at the molecular level and remodeling at the macro level, which makes it a third emerging polymer type that is different from conventional thermoset materials and thermoplastic materials. The emergence of this new Vitrimer polymer opens up a new way for the recycling and reuse of traditional plastic and rubber products. This article summarizes the design methods of converting polyolefin materials widely used in industry into Vitrimer polymer materials, and then describes detailedly the dynamic exchange mechanism of the widely used dynamic β-hydroxyester exchange (organic network transesterification and nano-interface transesterification) and dynamic B-O bond exchange (dynamic transesterification of borate and diol or ester groups, borate metathesis, and boroxine metathesis) and its application in the design of polyolefin-based Vitrimer materials. Finally, the problems existing in polyolefin-based Vitrimer polymer materials are analyzed and the future research and development directions are prospected.
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