DataVXAdvanced MaterialsPaper
journal article·2018-02

High‐Performance pH‐Switchable Supramolecular Thermosets via Cation–π Interactions

Guanjun Chang, Li Yang, Junxiao Yang, Mark P. Stoykovich, Xu Deng, Jiaxi Cui, Dapeng Wang

Advanced Materials· Volume 30· Issue 7
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Source abstract

Abstract

Abstract Supramolecular chemistry has provided versatile and affordable solutions for the design of intelligent soft materials, but it cannot be applied in stiff materials. This paper describes a new concept for the design of high‐performance supramolecular thermosets by using the noncovalent cation–π interaction as cross‐linking. These supramolecular thermosets are a class of infusible and insoluble stiff polymers having excellent mechanical properties even at temperatures exceeding 300 °C. The cation–π interaction can be locally and reversibly installed and removed by aqueous treatments at high or low pH, respectively. Local manipulation of cross‐linking confers these thermosets with multiple stimuli‐responsive functions, such as recyclability, healability, adhesion, and nondestructive detection of cross‐linking and mechanical properties.
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Research context

Polymers

OpenAlex topics: Polymer composites and self-healing · Supramolecular Self-Assembly in Materials · Polydiacetylene-based materials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Environmental Friendly Energy Materials & School of Material Science and Engineering Southwest University of Science and Technology Mianyang 621010 P. R. China

Department of Chemical and Biological Engineering University of Colorado Boulder Boulder CO 80309 USA

Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 610054 P. R. China

INM‐Leibniz Institute for New Materials Saarbrücken D‐66123 Germany

State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China

Funding

National Natural Science Foundation of China

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