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Studies on chitin. VI. Binding of metal cations
Author(s) -
Kurita Keisuke,
Sannan Takanori,
Iwakura Yoshio
Publication year - 1979
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.1979.070230221
Subject(s) - chitin , homogeneous , hydrolysis , polysaccharide , adsorption , chelation , acetylation , amino acid , chemistry , metal , organic chemistry , polymer chemistry , nuclear chemistry , inorganic chemistry , chitosan , biochemistry , mathematics , combinatorics , gene
The adsorption abilities of chitin and its congeners with two series of degrees of deacetylation prepared by two different deacetylation procedures were compared. Among the polysaccharides obtained by the heterogeneous method, those with higher amino group content had higher adsorption ability. Plots of collection percentages versus amino group content, however, did not give straight lines. The plot for the chelation on the congeners that were prepared by homogeneous hydrolysis had a maximum at about 50% amino group content, and the value was higher than that for the sample with the highest amino group content, which was prepared by heterogeneous hydrolysis. These results suggest that the polysaccharides with about 50% amino group content obtained by the homogeneous procedure are potentially useful for the removal of metals.