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Citation:
ZENG Kun-Wei, LI Ye-Ping, FANG Yue-E. Preparation and Structure of Water-soluble Microcrystalline Chitosan[J]. Chinese Journal of Applied Chemistry,
;2002, 19(3): 216-219.
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Crude chitosan powder was degraded by HCl or H3PO4 water/ethanol solution to give two kinds of water-soluble microcrystalline chitosan with diameters being inrange of 400 nm to 800 nm. In IR spectra acetamide bands of crude chitosan(at 1650, 1600 cm-1) disappeared completely, and instead, the asymmetric distortion vibration and symmetric distortion vibration bands of -NH3+ were observed at 1 620, 1 520 cm-1. The microcrystalline chitosan prepared by acidolysis with HCl solution dissolved in clod water; and that with H3PO4 solution dissolved in water only at 60℃.
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Keywords:
- water-soluble,
- microcrystalline,
- chitosan
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