期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 46, 期 5, 页码 558-561出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2010.02.009
关键词
Chitosan; Ultraviolet absorption; Sunscreen; Michael reaction
资金
- Open Fund from State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
- Open Fund from State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology [CE20090021, CM2008220]
A novel chitosan derivative carrying the benzene group was synthesized by Michael reaction. The chemical structures of the compounds were characterized by FT-IR, UV-vis spectrometry, XRD, elemental analysis, and H-1 NMR spectroscopy in detail. The degree of substitution (DS) of chitosan derivative was calculated by elemental analysis. The UV-vis results indicated that the derivatives had ultraviolet absorption at 265 and 273 nm. XRD analysis showed that the derivatives were amorphous. The derivatives could dissolve in water. Taking advantage of the known capacity of solubility and ultraviolet absorption, the chitosan derivatives opened new possibilities for use as a sunscreen. (C) 2010 Published by Elsevier B.V.
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