Understanding polymer–colloid gels: a solvent perspective using low-field NMR
The present work emphasizes the relevance of low-field NMR relaxometry to investigate colloid-polymer hydrogels by probing water dynamics across a wide range of formulations between 10 °C and 80 °C. By examining the temperature dependence of the transverse relaxation time <i>T</i><sub>2</sub>, we demonstrate a clear link between the NMR response and the rheological behavior of the hydrogels. In particular, we show that NMR relaxometry targeting the solvent provides reliable insights into the hydrogel microstructure and allows the detection of phase transitions and aging processes. Our findings suggest that this solvent-focused technique could greatly benefit the soft matter community, complementing other experimental methods in the study of gels.
Authors
- Gauthier Legrand
- Guilhem P. Baeza (ORCID: https://orcid.org/0000-0002-5142-9670)
- Thibaut Divoux (ORCID: https://orcid.org/0000-0002-6777-5084)
- Léo Hervéou
Institutions
- Université Claude Bernard Lyon 1 (FR)
- Centre National de la Recherche Scientifique (FR)
- Laboratoire de Physique de l'ENS de Lyon (FR)
- Matériaux Ingénierie et Science (FR)
- Institut National des Sciences Appliquées de Lyon (FR)
Publication Details
- Journal
- Soft Matter
- Published
- 2024-11-06
- DOI
- https://doi.org/10.1039/d4sm01098a
- Citations
- 5
- Primary Topic
- NMR spectroscopy and applications
- Type
- article
- Field-Weighted Citation Impact
- 3.30
Funders
- Indian National Science Academy
- Agence Nationale de la Recherche
- Université de Lyon
- LABEX iMUST