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Water‐Soluble N ‐( n ‐Fatty acyl)chitosans
Author(s) -
Hirano Shigehiro,
Yamaguchi Yasuhiro,
Kamiya Mitsutomo
Publication year - 2003
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.200350029
Subject(s) - chemistry , chitosan , aqueous solution , acylation , methanol , acetic acid , fatty acid , acetic anhydride , organic chemistry , carboxylic acid , catalysis
Chitosan was partially N ‐acylated by treatment with n ‐fatty acid anhydrides in a homogeneous solution in 2 vol.‐% aqueous acetic acid‐methanol (1:2 v/v). The degree of substitution (d.s.) for N ‐acyl groups in the water‐soluble N ‐acylchitosan derivatives was in the range of 0.42–0.82 for N ‐acetyl, 0.37–0.76 for N ‐propionyl, 0.52–0.71 for N ‐butyryl and 0.54–0.64 for N ‐pentanoyl and ca. 0.58 for N ‐hexanoyl, respectively.Water soluble N ‐( n ‐fatty acyl)chitosans.
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