Cross-polarization-magic angle cellulose

Cellulose, which Is one of the most abundant organic substances found In nature, has been extensively studied by various techniques such as x-ray scattering, electron microscopy, IR and Raman spectroscopy, NMR spectroscopy etc. However, the crystal structure and noncrystalline state are not yet solved for cotton, ramie, bacterial and valonla celluloses which can be easily obtained in pure form. Cross-polarization/magic angle spinning(CP/MAS) C NMR spectroscopy is a promising new method to study these unsolved problems of cellulose, because this method is very sensitive to local molecular conformations and dynamics. 

Cross-Polarization-Magic Angle Spinning Carbon-13 NMR Approach to the Structural Analysis of Cellulose... 

Yamamoto H, Horn F. (1994). In sim crystallization of bacterial cellulose I. Influences of polymeric additives, stirring and temperature on the formation celluloses I a and I 3 as revealed by cross polarization/magic angle spinning (CP/MAS) 13 C NMR spectroscopy. Cellulose, 1, 57-66. 

Wada, M., Heux, L., Nishiyama, Y., Langan, P., 2009. The structure of the complex of cellulose 1 with ethylene di-amine by X-ray crystallography and cross-polarization/magic angle spinning nuclear magnetic resonance. Cellulose 16, 943—957. 

In our work CP/MAS C-NMR (Cross-Polarization Magic Angle Spurning Carbon-13 Nuclear Magnetic Resonance) spectroscopy togefiier wifii spectral fitting has been the method used for stud3dng interactions between cellulose I and hemicelluloses. A necessary prerequisite for this approach is a reliable interpretation of cellulose I spectra. 

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