Issue 32, 2020

Supramolecular self-healing materials from non-covalent cross-linking host–guest interactions

Abstract

The introduction of non-covalent bonds is effective for achieving self-healing properties because they can be controlled reversibly. One approach to introduce these bonds into supramolecular materials is use of host–guest interactions. This feature article summarizes the development of supramolecular materials constructed by non-covalent cross-linking through several approaches, such as host–guest interactions between host polymers and guest polymers, 1 : 2-type host–guest interactions, and host–guest interactions from the polymerization of host–guest inclusion complexes. Host–guest interactions show self-healing functions while also enabling stimuli-responsiveness (redox, pH, and temperature). The self-healing function of supramolecular materials is achieved by stress dispersion arising from host–guest interactions when stress is applied. Reversible bonds based on host–guest interactions have tremendous potential to expand the variety of functional materials.

Graphical abstract: Supramolecular self-healing materials from non-covalent cross-linking host–guest interactions

Article information

Article type
Feature Article
Submitted
24 Jan 2020
Accepted
20 Mar 2020
First published
20 Mar 2020

Chem. Commun., 2020,56, 4381-4395

Supramolecular self-healing materials from non-covalent cross-linking host–guest interactions

G. Sinawang, M. Osaki, Y. Takashima, H. Yamaguchi and A. Harada, Chem. Commun., 2020, 56, 4381 DOI: 10.1039/D0CC00672F

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