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Anion-Induced Reversible Actuation of Squaramide-Crosslinked Polymer Gels
[Image: see text] Supramolecular anion binding to squaramide crosslinkers in poly(N,N-dimethylacrylamide) gel networks enhances swelling and allows reversible chemically driven actuation. The volume swelling ratio of the gels is shown to depend on both the type of anion and its concentration. (1)H N...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9523616/ https://www.ncbi.nlm.nih.gov/pubmed/36099444 http://dx.doi.org/10.1021/acsami.2c11136 |
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author | Mommer, Stefan Wezenberg, Sander J. |
author_facet | Mommer, Stefan Wezenberg, Sander J. |
author_sort | Mommer, Stefan |
collection | PubMed |
description | [Image: see text] Supramolecular anion binding to squaramide crosslinkers in poly(N,N-dimethylacrylamide) gel networks enhances swelling and allows reversible chemically driven actuation. The volume swelling ratio of the gels is shown to depend on both the type of anion and its concentration. (1)H NMR and UV–vis titrations with the squaramide crosslinkers reveal a relationship between anion binding affinity and the concentration-dependent swelling behavior. Gel swelling is shown to be reversible, and by embedding a solid support into rod-shaped gels, soft actuators are fabricated that undergo forward and backward bending motion in response to changing anion concentration. The swelling and bending process, which is accompanied by intense green coloration of the gel, is achieved by using only low amounts of crosslinker. This macroscopic actuation achieved by anion binding to specific molecular entities in the polymer network will open new opportunities in the field of chemically responsive materials. |
format | Online Article Text |
id | pubmed-9523616 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-95236162022-10-01 Anion-Induced Reversible Actuation of Squaramide-Crosslinked Polymer Gels Mommer, Stefan Wezenberg, Sander J. ACS Appl Mater Interfaces [Image: see text] Supramolecular anion binding to squaramide crosslinkers in poly(N,N-dimethylacrylamide) gel networks enhances swelling and allows reversible chemically driven actuation. The volume swelling ratio of the gels is shown to depend on both the type of anion and its concentration. (1)H NMR and UV–vis titrations with the squaramide crosslinkers reveal a relationship between anion binding affinity and the concentration-dependent swelling behavior. Gel swelling is shown to be reversible, and by embedding a solid support into rod-shaped gels, soft actuators are fabricated that undergo forward and backward bending motion in response to changing anion concentration. The swelling and bending process, which is accompanied by intense green coloration of the gel, is achieved by using only low amounts of crosslinker. This macroscopic actuation achieved by anion binding to specific molecular entities in the polymer network will open new opportunities in the field of chemically responsive materials. American Chemical Society 2022-09-13 2022-09-28 /pmc/articles/PMC9523616/ /pubmed/36099444 http://dx.doi.org/10.1021/acsami.2c11136 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Mommer, Stefan Wezenberg, Sander J. Anion-Induced Reversible Actuation of Squaramide-Crosslinked Polymer Gels |
title | Anion-Induced Reversible
Actuation of Squaramide-Crosslinked
Polymer Gels |
title_full | Anion-Induced Reversible
Actuation of Squaramide-Crosslinked
Polymer Gels |
title_fullStr | Anion-Induced Reversible
Actuation of Squaramide-Crosslinked
Polymer Gels |
title_full_unstemmed | Anion-Induced Reversible
Actuation of Squaramide-Crosslinked
Polymer Gels |
title_short | Anion-Induced Reversible
Actuation of Squaramide-Crosslinked
Polymer Gels |
title_sort | anion-induced reversible
actuation of squaramide-crosslinked
polymer gels |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9523616/ https://www.ncbi.nlm.nih.gov/pubmed/36099444 http://dx.doi.org/10.1021/acsami.2c11136 |
work_keys_str_mv | AT mommerstefan anioninducedreversibleactuationofsquaramidecrosslinkedpolymergels AT wezenbergsanderj anioninducedreversibleactuationofsquaramidecrosslinkedpolymergels |