Chapter 5: NMR of Supramolecular Gels
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Published:07 Jul 2020
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Special Collection: 2020 ebook collectionSeries: New Developments in NMR
S. Tamesue, in NMR and MRI of Gels, ed. Y. De Deene, The Royal Society of Chemistry, 2020, ch. 5, pp. 174-199.
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Recently, supramolecular gel materials have attracted considerable attention in various fields including engineering, medical science, and physical science due to their interesting properties, which are not observed in solid materials, liquid materials, and covalent gel materials. During the design and formation of functional supramolecular gel materials, knowledge of the structures and characteristics of supramolecular gels and their components is crucial. To obtain information, researchers focusing on supramolecular gels have utilized various measurement techniques, including absorption spectroscopy, infrared spectroscopy, rheology, scanning electron microscopy, and X-ray diffraction. Nuclear magnetic resonance (NMR) spectroscopy involves the measurement of the conditions of nuclei affected by their surroundings. NMR is an extensively used and beneficial measurement technique for supramolecular materials as NMR spectra can be recorded under wet and dry conditions. Previously, various NMR measurements have been employed to detect various nuclei and to obtain distance information between nuclei. In this chapter, approaches to examine supramolecular gel materials by NMR measurements with respect to previously reported studies are reviewed.