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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201901402
|2 doi
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|a pubmed24n0986.xml
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|a (DE-627)NLM295985488
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|a (NLM)30977571
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
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|a Zhang, Luzhi
|e verfasserin
|4 aut
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| 245 |
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|a A Highly Efficient Self-Healing Elastomer with Unprecedented Mechanical Properties
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a It is highly desirable, although very challenging, to develop self-healable materials exhibiting both high efficiency in self-healing and excellent mechanical properties at ambient conditions. Herein, a novel Cu(II)-dimethylglyoxime-urethane-complex-based polyurethane elastomer (Cu-DOU-CPU) with synergetic triple dynamic bonds is developed. Cu-DOU-CPU demonstrates the highest reported mechanical performance for self-healing elastomers at room temperature, with a tensile strength and toughness up to 14.8 MPa and 87.0 MJ m-3 , respectively. Meanwhile, the Cu-DOU-CPU spontaneously self-heals at room temperature with an instant recovered tensile strength of 1.84 MPa and a continuously increased strength up to 13.8 MPa, surpassing the original strength of all other counterparts. Density functional theory calculations reveal that the coordination of Cu(II) plays a critical role in accelerating the reversible dissociation of dimethylglyoxime-urethane, which is important to the excellent performance of the self-healing elastomer. Application of this technology is demonstrated by a self-healable and stretchable circuit constructed from Cu-DOU-CPU
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|a Journal Article
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|a dynamic covalent bonds
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|a elastomers
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|a metal coordination
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|a polyurethane
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|a self-healing
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|a Liu, Zenghe
|e verfasserin
|4 aut
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|a Wu, Xueli
|e verfasserin
|4 aut
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|a Guan, Qingbao
|e verfasserin
|4 aut
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|a Chen, Shuo
|e verfasserin
|4 aut
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|a Sun, Lijie
|e verfasserin
|4 aut
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|a Guo, Yifan
|e verfasserin
|4 aut
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|a Wang, Shuliang
|e verfasserin
|4 aut
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|a Song, Jianchun
|e verfasserin
|4 aut
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|a Jeffries, Eric Meade
|e verfasserin
|4 aut
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|a He, Chuanglong
|e verfasserin
|4 aut
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|a Qing, Feng-Ling
|e verfasserin
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|a Bao, Xiaoguang
|e verfasserin
|4 aut
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|a You, Zhengwei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 31(2019), 23 vom: 17. Juni, Seite e1901402
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:31
|g year:2019
|g number:23
|g day:17
|g month:06
|g pages:e1901402
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|u http://dx.doi.org/10.1002/adma.201901402
|3 Volltext
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