Annealing multicomponent supramolecular gels

Fuentes Caparros, A. M., Gomez Franco, F. d. P., Dietrich, B. , Wilson, C. , Brasnett, C., Seddon, A. and Adams, D. J. (2019) Annealing multicomponent supramolecular gels. Nanoscale, 11, 3275. (doi: 10.1039/C8NR09423C) (PMID:30720823)

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Annealing is widely used as a means of changing the physical properties of a material. The rate of heating and cooling used in the annealing process controls the final properties. Annealing can be used as a means of driving towards the, or at least a, thermodynamic minimum. There is surprisingly little information on annealing kinetically-trapped supramolecular gels. Here, we show that annealing multicomponent gels can be used to prepare materials with tunable mechanical properties. We show that annealing in a two-component gel leads to a self-sorted network, which has significantly different mechanical properties to the as-prepared gels. Whilst the fibres are self-sorted, we show that the annealing of this system leads to significant change in the network level of assembly, and it is this that leads to the increase in storage modulus. We also show that it is possible to selectively anneal only a single component in the mixture.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Dietrich, Bart and Adams, Dave and Gomez Franco, Francisco de Paula and Wilson, Dr Claire and Fuentes Caparros, Miss Ana Maria
Authors: Fuentes Caparros, A. M., Gomez Franco, F. d. P., Dietrich, B., Wilson, C., Brasnett, C., Seddon, A., and Adams, D. J.
College/School:College of Science and Engineering > School of Chemistry
College of Science and Engineering > School of Engineering
Journal Name:Nanoscale
Publisher:Royal Society of Chemistry
ISSN (Online):2040-3372
Published Online:30 January 2019
Copyright Holders:Copyright © 2019 The Royal Society of Chemistry
First Published:First published in Nanoscale 11:3275
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
768041Multicomponent Supramolecular HydrogelsDave AdamsEngineering and Physical Sciences Research Council (EPSRC)EP/L021978/2SCHOOL OF CHEMISTRY