Supramolecular and Physically Double-Cross-Linked Network Strategy toward Strong and Tough Elastic Fibers

Zhikai  Li; Jiabin  Wang; Xiaohong  Li; Ying  Wang; Li-Juan  Fan; Shuguang  Yang; Mingyu  Guo; Xiaopeng  Li; Yingfeng  Tu

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Supramolecular and Physically Double-Cross-Linked Network Strategy toward Strong and Tough Elastic Fibers

机译：超分子和物理上双交联网络策略对强硬弹性纤维

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The strength and toughness are two trade-off properties of a material, yet Nature can achieve strong and tough materials by introducing sacrificial bonds into a system. Here, we present a four-component multiblock copolymer (mBCP) approach toward strong and tough elastic fibers, by introducing terpyridine moieties into poly(ether ester) mBCP elastomers. After coordination with Fe(II), supramolecular cross-links are formed within the physically cross-linked thermoplastic elastomers. The toughening elastic fibers with a double-cross-linked network structure show high tensile strength (ca. 300 MPa) and toughness (ca. 100 MJ m~(–3)). In addition, they display excellent resilience with enhanced self-healing properties. Our strategy provides a promising way for the development of strong and tough elastomers by introducing metal–ligand sacrificial bonds into mBCPs elastomers.

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《ACS Macro Letters》 |2020年第11期|共7页
作者
Zhikai Li; Jiabin Wang; Xiaohong Li; Ying Wang; Li-Juan Fan; Shuguang Yang; Mingyu Guo; Xiaopeng Li; Yingfeng Tu;
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作者单位

Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University;

Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University;

Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University;

Testing and Analysis Center Soochow University;

Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University;

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Material Science and Engineering Donghua University;

Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University;

College of Chemistry and Environmental Engineering Shenzhen University;

Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University;

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正文语种 eng
中图分类有机化学;
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Supramolecular and Physically Double-Cross-Linked Network Strategy toward Strong and Tough Elastic Fibers

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