[Study on chitosan-Zn (II) complex by IR spectroscopy].
A series of chitosan-Zn (II) complexes were synthesized by reaction of chitosan and ZnSO4 in different ratios(chitosan : Zn (II) = 1 : 0.05-1 : 1) in dilute formic acid aqueous solution. The results showed that -NH2, -OH and -NHCO- of chitosan molecule were coordinated to Zn (II) based on the analyse of the IR spectra of chitosan, chitosan-H2SO4 and chitosan-ZnSO4. SO4(2-) of chitosan-ZnSO4 may be crosslinking of chitosan molecule, but Cl-, CH3COO- and NO3- were not crosslinked to chitosan molecule in the chitosan-ZnCl2, chitosan-Zn (CH3COO)2 and chitosan-Zn (NO3)2 complexes.
Wang
A
A
Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 730000 Lanzhou.
Zhao
P
P
Gao
X
X
Yu
X
X
D048271:Chitosan / Q000737:chemistry*; D002712:Chlorides / Q000737:chemistry*; D015394:Molecular Structure; D013055:Spectrophotometry, Infrared / Q000379:methods*; D017967:Zinc Compounds / Q000737:chemistry*
D002712:Chlorides; D017967:Zinc Compounds; C016837:zinc chloride; D048271:Chitosan