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Preparation and characterization of N‐alkylated chitosan derivatives
Author(s) -
Ma Guiping,
Yang Dongzhi,
Tan Hailin,
Wu Qin,
Nie Jun
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.28223
Subject(s) - chitosan , alkylation , acetic acid , distilled water , fourier transform infrared spectroscopy , chemistry , proton nmr , nuclear chemistry , reagent , chemical structure , polymer chemistry , chemical modification , organic chemistry , materials science , chemical engineering , chromatography , catalysis , engineering
N‐alkylated chitosan derivatives were synthesized in water containing acetic acid by the Michael addition reaction of chitosan with various acryl reagents. The chemical structures of the chitosan derivatives were characterized with Fourier transform infrared and 1 H‐NMR techniques. The 1 H‐NMR results indicated that the degree of substitution of the chitosan derivatives ranged from 0.13 to 0.39. The chitosan derivatives exhibited different solubilities in distilled water. X‐ray diffraction analysis showed that the chitosan derivatives were amorphous. The chitosan derivatives still had antimicrobial ability. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008