Force-Reversible and Energetic Indole-Mg-Indole Cation-π Interaction for Designing Toughened and Multifunctional High-Performance Thermosets

Yang Li; Li Yicheng; Du MengqiHe YitingLan YangYin QiangZhu FanghuaChang Guanjun

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Force-Reversible and Energetic Indole-Mg-Indole Cation-π Interaction for Designing Toughened and Multifunctional High-Performance Thermosets

机译：Force-Reversible and Energetic Indole-Mg-Indole Cation-π Interaction for Designing Toughened and Multifunctional High-Performance Thermosets

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Non-covalent crosslinking has provided versatile and affordable solutions for the design of tough soft polymer materials, but it is not applied in stiff high-performance thermosets. Here, the authors report a supramolecular approach for the design of tough high-performance thermosets by using noncovalent sandwich-structural indole-Mg-indole complexes that act as the force-reversible and energetic crosslinking points, evading the inherent trade-off between mechanical strength and ductility for high-performance thermosets. Compared to traditional epoxy polymer materials, the indole-Mg-indole crosslinks of the network enables synchronously enhancement of mechanical strength and ductility owing to the increased interaction-energy and efficient dissociation and reassociation behaviors given by the dynamic indole-Mg-indole complexes, which is quite challenging to achieve by conventional chemical methods. In addition, local manipulation of crosslinking confers the resulting thermosets with multiple fast stimuli-responsive functions, such as recyclability, healability, and adhesion.

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《Advanced functional materials》 |2022年第14期|2111021.1-2111021.7|共7页
作者
Yang Li; Li Yicheng; Du MengqiHe YitingLan YangYin QiangZhu FanghuaChang Guanjun;
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作者单位

Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Sichuan, Peoples R China|Southwest Univ Sci & Technol, Sch Mat Sci & Engn, Mianyang 621010, Sichuan, Peoples R China;

UCL, Ctr Nat Inspired Engn, Dept Chem Engn, London WC1E 7JE, England;

China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Sichuan, Peoples R China;

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正文语种英语
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force-reversible interactions; functional polymers; high-performance thermosets;

Force-Reversible and Energetic Indole-Mg-Indole Cation-π Interaction for Designing Toughened and Multifunctional High-Performance Thermosets

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