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Annealing multicomponent supramolecular gels

Research output: Contribution to journalArticle

  • Ana M. Fuentes-Caparrós
  • Francisco De Paula Gómez-Franco
  • Bart Dietrich
  • Claire Wilson
  • Christopher Brasnett
  • Annela Seddon
  • Dave J. Adams
Original languageEnglish
Pages (from-to)3281-3291
Number of pages11
JournalNanoscale
Volume11
Issue number7
DOIs
DateSubmitted - 21 Nov 2018
DateAccepted/In press - 30 Jan 2019
DatePublished (current) - 28 Feb 2019

Abstract

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.

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    Rights statement: This is the final published version of the article (version of record). It first appeared online via The RSC at https://doi.org/10.1039/C8NR09423C . Please refer to any applicable terms of use of the publisher.

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    Licence: CC BY

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