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Self-Healing and Shape Memory Hypercrosslinked Metal-Organic Polyhedra Polymers via Coordination Post-Assembly
Jinjin Liu1, Jiamin Li1, Shan Qiao2
1State Key Laboratory of Medicinal Chemical biology, College of Chemistry, Nankai University, Tianjin, 300071, China.
Angewandte Chemie (International Ed. in English)
|September 9, 2022
Summary
We developed coordination hypercrosslinked metal-organic polyhedra (MOP) polymers that offer enhanced mechanical properties, dynamic healing, and multifunctionalities like shape memory and 3D printing capabilities.
Area of Science:
- Materials Science
- Polymer Chemistry
- Supramolecular Chemistry
Background:
- Dynamic and reversible coordination-driven crosslinking networks are of significant interest.
- Metal-organic polyhedra (MOPs) offer high connectivity as building blocks.
Purpose of the Study:
- To construct novel coordination hypercrosslinked MOP (CHMOP) polymers.
- To overcome the mechanical properties versus dynamic healing trade-off in polymeric networks.
Main Methods:
- Post-assembly of polymers using MOPs as high-connectivity building blocks.
- Incorporation of 12-connected MOP nodes into polymeric networks.
Main Results:
- CHMOPs exhibit a balance between mechanical strength and dynamic healing.
- Achieved multifunctionalities including shape memory, solution processability, and 3D printing.
- Demonstrated anticorrosion coating capabilities and shape memory-assisted self-healing (SMASH).
Conclusions:
- This work presents a viable strategy for creating new multifunctional materials.
- The study expands the application potential of MOPs in advanced materials.
