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Preparation and characterization of dihydroxyl mesocyclic diamine derivative of chitosan
Author(s) -
Yang Zhikuan,
Li Jian
Publication year - 2002
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.11214
Subject(s) - chitosan , diamine , selectivity , adsorption , amine gas treating , chemistry , polymer chemistry , grafting , derivative (finance) , ether , fourier transform infrared spectroscopy , nuclear chemistry , polymer , organic chemistry , chemical engineering , catalysis , financial economics , engineering , economics
The synthesis of a new dihydroxyl mesocyclic diamine grafting chitosan is presented. This derivative is formed by reaction of dihydroxyl azacrown ether with expoxy‐activated chitosan. The obtained copolymer contains amino functional groups in its skeleton and the secondary amine, and more polar hydroxyl groups. Elemental analysis, fourier transform infrared analysis, as well as solid‐state carbon‐13 nuclear magnetic resonance analysis were used to characterize chemical modifications of the chitosan. The adsorption properties of the dihydroxyl mesocyclic diamine grafted chitosan for Ag + , Pb 2+ , Cd 2+ , and Cr 3+ were studied. The experimented results showed that the novel chitosan derivative has good adsorption capacity and high selectivity for Ag + in the presence of Pb 2+ , Cd 2+ , and Cr 3+ , and its adsorption selectivity is better than that of chitosan. The selectivity coefficients were K Ag + /Pb 2+= 12.25, K Ag + /Cr 3+= 6.12, and K Pb 2+ /Cr 3+= 0.52, respectively. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 2677–2681, 2002