Covalent Hydrogels with Dual Temperature ...
Document type :
Article dans une revue scientifique: Article original
Permalink :
Title :
Covalent Hydrogels with Dual Temperature and Time Memory Function Based on Supramolecular Host–Guest Complexation
Author(s) :
De Smet, Lieselot [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Belal, Khaled [Auteur]
Vebr, Aurelien [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Lyskawa, Joel [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Stoffelbach, François [Auteur]
Institut Parisien de Chimie Moléculaire [IPCM]
Hoogenboom, Richard [Auteur]
Universiteit Gent = Ghent University [UGENT]
Woisel, Patrice [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Belal, Khaled [Auteur]
Vebr, Aurelien [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Lyskawa, Joel [Auteur]

Unité Matériaux et Transformations (UMET) - UMR 8207
Stoffelbach, François [Auteur]
Institut Parisien de Chimie Moléculaire [IPCM]
Hoogenboom, Richard [Auteur]
Universiteit Gent = Ghent University [UGENT]
Woisel, Patrice [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Journal title :
ACS Materials Letters
Abbreviated title :
ACS Materials Lett.
Volume number :
5
Pages :
235-242
Publisher :
American Chemical Society (ACS)
Publication date :
2022-12-19
ISSN :
2639-4979
HAL domain(s) :
Chimie/Matériaux
Chimie/Polymères
Chimie/Polymères
English abstract : [en]
Temperature is among the most important measured physical parameters. Despite that numerous polymeric temperature sensors having been reported, none of these systems can record the time that the object was heated to a ...
Show more >Temperature is among the most important measured physical parameters. Despite that numerous polymeric temperature sensors having been reported, none of these systems can record the time that the object was heated to a certain temperature. Here, we report a supramolecular approach for developing a smart polymeric hydrogel capable of measuring the temperature and the duration of the heat exposure. This double memory principle is based on dual kinetic control of the dissociation of cyclobis(paraquat-p-phenylene) tetrachloride (CBPQT4+,4Cl–)-naphthalene host–guest complexes within a thermoresponsive naphthalene functionalized poly(N-isopropylacrylamide) hydrogel. Heating-induced collapse of this LCST polymer hydrogel induces host–guest complex dissociation, followed by the diffusion-controlled release of the free CBPQT4+,4Cl– host into the medium surrounding the hydrogel. This partial host release is governed by the heat exposure time and the heating temperature that controls the extent of dehydration of the hydrogel and, thus, the diffusion rate of the CBPQT4+,4Cl–. Hence, the amount of host released is an indicator for both the heating temperature and the heating time of the hydrogel and can be recorded by determining the reswelling capability of the hydrogel in water. As such, measuring the reswelling capability provides information on how long the hydrogel system was exposed to a certain temperature.Show less >
Show more >Temperature is among the most important measured physical parameters. Despite that numerous polymeric temperature sensors having been reported, none of these systems can record the time that the object was heated to a certain temperature. Here, we report a supramolecular approach for developing a smart polymeric hydrogel capable of measuring the temperature and the duration of the heat exposure. This double memory principle is based on dual kinetic control of the dissociation of cyclobis(paraquat-p-phenylene) tetrachloride (CBPQT4+,4Cl–)-naphthalene host–guest complexes within a thermoresponsive naphthalene functionalized poly(N-isopropylacrylamide) hydrogel. Heating-induced collapse of this LCST polymer hydrogel induces host–guest complex dissociation, followed by the diffusion-controlled release of the free CBPQT4+,4Cl– host into the medium surrounding the hydrogel. This partial host release is governed by the heat exposure time and the heating temperature that controls the extent of dehydration of the hydrogel and, thus, the diffusion rate of the CBPQT4+,4Cl–. Hence, the amount of host released is an indicator for both the heating temperature and the heating time of the hydrogel and can be recorded by determining the reswelling capability of the hydrogel in water. As such, measuring the reswelling capability provides information on how long the hydrogel system was exposed to a certain temperature.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
INRAE
ENSCL
CNRS
INRAE
ENSCL
Collections :
Research team(s) :
Ingénierie des Systèmes Polymères
Submission date :
2023-01-05T07:49:21Z
2023-01-05T10:20:33Z
2023-01-05T10:20:33Z