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Highly compressible glass-like supramolecular polymer networks
Zehuan Huang ; Xiaoyi Chen ; Stephen J. K. O’Neill , et al. Nat. Mater.,2022,21(1):103-109. DOI: 10.1038/s41563-021-01124-x PubMed ID: 34819661
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Abstract: Supramolecular polymer networks are non-covalently crosslinked soft materials that exhibit unique mechanical features such as self-healing, high toughness and stretchability. Previous studies have focused on optimizing such properties using fast-dissociative crosslinks (that is, for an aqueous system, dissociation rate constant kd?>?10?s?1). Herein, we describe non-covalent crosslinkers with slow, tuneable dissociation kinetics (kd?1?s?1) that enable high compressibility to supramolecular polymer networks. The resultant glass-like supramolecular networks have compressive strengths up to 100?MPa with no fracture, even when compressed at 93% strain over 12 cycles of compression and relaxation. Notably, these networks show a fast, room-temperature self-recovery (< 120?s), which may be useful for the design of high-performance soft materials. Retarding the dissociation kinetics of non-covalent crosslinks through structural control enables access of such glass-like supramolecular materials, holding substantial promise in applications including soft robotics, tissue engineering and wearable bioelectronics.
Purchased from AmBeed: 2243-54-1 ; 17201-43-3 ; 589-15-1 ; 106797-53-9 ; 622-95-7 ; 16004-15-2 ; 7646-67-5
CAS No. : | 106797-53-9 | MDL No. : | MFCD00085267 |
Formula : | C12H16O4 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | GJKGAPPUXSSCFI-UHFFFAOYSA-N |
M.W : | 224.25 | Pubchem ID : | 86266 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P273 | UN#: | |
Hazard Statements: | H302-H412 | Packing Group: | |
GHS Pictogram: |