NMR Methods for Characterization of Synthetic and Natural Polymers
Chapter 11: Nanostructures, Conformations, and Intermolecular Interactions in Natural Biopolymers Revealed by Solid-state NMR Spectroscopy
Published:29 Jul 2019
Special Collection: 2019 ebook collectionSeries: New Developments in NMR
F. Wang, D. Tian, R. Zhang, and P. Sun, in NMR Methods for Characterization of Synthetic and Natural Polymers, ed. R. Zhang, T. Miyoshi, and P. Sun, The Royal Society of Chemistry, 2019, ch. 11, pp. 231-250.
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In light of the biological significance as well as the great potential in medical and industrial applications, natural renewable and degradable biopolymers have gained tremendous attention in recent decades. Thus, it is crucial to understand details of nanoscale structures, chain conformations, inter-/intramolecular interactions, and dynamics for a comprehensive understanding of the molecular origin of the corresponding macroscopic material properties. Solid-state NMR spectroscopy has demonstrated itself as a powerful and unrivalled approach for the investigation of natural biopolymers due to its abundant nuclei selectivity and non-destructive property as well as the capability of selective manipulation of various anisotropic spin interactions in the biopolymers. In this chapter, we mainly review some recently developed solid-state NMR approaches for quantitative/qualitative determination of the nano-structures, intermolecular interactions, and conformation transitions in biopolymers. Specifically, solid-state NMR studies on chitosan and cellulose-based materials will be reviewed.