Hybrid supramolecular and colloidal hydrogels that bridge multiple length scales

Angewandte Chemie
Emma-Rose JanečekOren A Scherman

Abstract

Hybrid nanocomposites were constructed based on colloidal nanofibrillar hydrogels with interpenetrating supramolecular hydrogels, displaying enhanced rheological yield strain and a synergistic improvement in storage modulus. The supramolecular hydrogel consists of naphthyl-functionalized hydroxyethyl cellulose and a cationic polystyrene derivative decorated with methylviologen moieties, physically cross-linked with cucurbit[8]uril macrocyclic hosts. Fast exchange kinetics within the supramolecular system are enabled by reversible cross-linking through the binding of the naphthyl and viologen guests. The colloidal hydrogel consists of nanofibrillated cellulose that combines a mechanically strong nanofiber skeleton with a lateral fibrillar diameter of a few nanometers. The two networks interact through hydroxyethyl cellulose adsorption to the nanofibrillated cellulose surfaces. This work shows methods to bridge the length scales of molecular and colloidal hybrid hydrogels, resulting in synergy between reinforcement and dynamics.

References

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Citations

Nov 14, 2015·Chemical Reviews·Steven J BarrowOren A Scherman
Sep 13, 2016·Biomacromolecules·Héloïse Thérien-AubinEugenia Kumacheva
May 21, 2016·Chemical Society Reviews·Lenny Voorhaar, Richard Hoogenboom
Sep 7, 2017·Chemical Society Reviews·Lili WangGuozhen Shen
Mar 6, 2018·Advanced Materials·Eero KontturiOlli Ikkala
Sep 1, 2018·Small·Hua ZouXia Wang
Nov 16, 2019·Nanoscale·Ruirui XingXuehai Yan
Jul 28, 2015·Chemistry, an Asian Journal·Lin ChenHe Tian
Dec 6, 2017·Advanced Materials·Feng JiangLiangbing Hu
Apr 12, 2016·Angewandte Chemie·Baochun WangAndreas Walther
Oct 28, 2019·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Lijing TengLi Ren
Feb 29, 2020·Chemical Science·Hendrik V Schröder, Christoph A Schalley
Oct 1, 2018·Progress in Polymer Science·Shengjie LingDavid L Kaplan
Oct 6, 2017·ACS Central Science·Yuping WangJ Fraser Stoddart

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Methods Mentioned

BETA
scanning electron microscopy

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