Abstract
The structure and dynamics of the functional biopolymer chitosan were investigated by measuring spin-lattice relaxation time, chemical shift anisotropy parameters, and compare those results with that of the chitin. The relaxation time and the correlation time of the carbon nuclei reside at the polysaccharidic backbone of chitosan are decreased due to depolymerization of polysaccharide chain. The effect of the substitution of different functional group at the C2 position of the monomeric sugar unit is portrayed by this type of comparative and comprehensive, which will enlighten the way of finding biodegradable and biocompatible polymers with enormous application in biomedicine.
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