Toward a versatile toolbox for cucurbit[ n]uril-based supramolecular hydrogel networks through in situ polymerization

J Polym Sci A Polym Chem. 2017 Sep 15;55(18):3105-3109. doi: 10.1002/pola.28667. Epub 2017 Jun 22.

Abstract

The success of exploiting cucurbit[n]uril (CB[n])-based molecular recognition in self-assembled systems has sparked a tremendous interest in polymer and materials chemistry. In this study, polymerization in the presence of host-guest complexes is applied as a modular synthetic approach toward a diverse set of CB[8]-based supramolecular hydrogels with desirable properties, such as mechanical strength, toughness, energy dissipation, self-healing, and shear-thinning. A range of vinyl monomers, including acrylamide-, acrylate-, and imidazolium-based hydrophilic monomers, could be easily incorporated as the polymer backbones, leading to a library of CB[8] hydrogel networks. This versatile strategy explores new horizons for the construction of supramolecular hydrogel networks and materials with emergent properties in wearable and self-healable electronic devices, sensors, and structural biomaterials. © 2017 The Authors. Journal of Polymer Science Part A: Polymer Chemistry Published by Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 3105-3109.

Keywords: cucurbit[n]uril; host‐guest systems; hydrogels; in situ polymerization; self healing; supramolecular hydrogel network; toughness.