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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202300286
|2 doi
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|a pubmed25n1178.xml
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Guo, Zhiwei
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Engineering of Chain Rigidity and Hydrogen Bond Cross-Linking toward Ultra-Strong, Healable, Recyclable, and Water-Resistant Elastomers
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|c 2023
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 25.05.2023
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|a Date Revised 25.05.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a High-performance elastomers have gained significant interest because of their wide applications in industry and our daily life. However, it remains a great challenge to fabricate elastomers simultaneously integrating ultra-high mechanical strength, toughness, and excellent healing and recycling capacities. In this study, ultra-strong, healable, and recyclable elastomers are fabricated by dynamically cross-linking copolymers composed of rigid polyimide (PI) segments and soft poly(urea-urethane) (PUU) segments with hydrogen bonds. The elastomers, which are denoted as PIPUU, have a record-high tensile strength of ≈142 MPa and an extremely high toughness of ≈527 MJ m-3 . The structure of the PIPUU elastomer contains hydrogen-bond-cross-linked elastic matrix and homogenously dispersed rigid nanostructures. The rigid PI segments self-assemble to generate phase-separated nanostructures that serve as nanofillers to significantly strengthen the elastomers. Meanwhile, the elastic matrix is composed of soft PUU segments cross-linked with reversible hydrogen bonds, which largely enhance the strength and toughness of the elastomer. The dynamically cross-linked PIPUU elastomers can be healed and recycled to restore their original mechanical strength. Moreover, because of the excellent mechanical performance and the hydrophobic PI segments, the PIPUU elastomers are scratch-, puncture-, and water-resistant
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|a Journal Article
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|a elastomers
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| 650 |
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4 |
|a healable materials
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| 650 |
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4 |
|a materials science
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| 650 |
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4 |
|a recyclable polymers
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| 650 |
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4 |
|a supramolecular polymers
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1 |
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|a Lu, Xingyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xiaohan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Xiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Jian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Junqi
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 21 vom: 15. Mai, Seite e2300286
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:35
|g year:2023
|g number:21
|g day:15
|g month:05
|g pages:e2300286
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202300286
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