CP/MAS Carbon-13 NMR Study of Spin Relaxation Phenomena of Cellulose Containing Crystalline and Noncrystalline Components
作者： F. Horii , A. Hirai , R. Kitamaru
DOI: 10.1080/07328308408057922
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摘要: Abstract Cross-polarization, 13C rotating frame spin-lattice relaxation and C laboratory processes have been studied for different cellulose samples by CP/MAS NMR spectroscopy. It was found that the CP process can be described a simple thermodynamic model relative intensities of respective resonance lines are consistent with atomic ratios spectra obtained at contact time about 1 ms. The observed times TC 10 were dominantly dependent on constant TD CH which nuclei coupled to 1H dipolar spin system. was, therefore, impossible obtain information molecular
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