Preparation and characterization of water-soluble chitosan derivative by Michael addition reaction.

Authors :: Jiang M
Wang K
Kennedy JF
Nie J
Yu Q
Ma G
Source :: International journal of biological macromolecules [Int J Biol Macromol] 2010 Dec 01; Vol. 47 (5), pp. 696-9. Date of Electronic Publication: 2010 Sep 15.
Publication Year :: 2010
Abstract: The efficient procedure to prepare novel water-soluble chitosan derivative was established by Michael addition reaction to introduce sodium allylsulfonate into the chitosan at mild condition. The chemical structure of the chitosan derivative was characterized by FT-IR, (1)H NMR and Elemental analysis. The degree of substitution (DS) was calculated by Elemental analysis. The chitosan derivative exhibited an excellent solubility in the distilled water. The physical properties were analyzed by XRD and TG. The XRD study indicated that the crystallinity of chitosan derivative decreased. The thermal analysis showed that chitosan derivative had lower thermal stability than chitosan.<br /> (Copyright © 2010 Elsevier B.V. All rights reserved.)

Subjects :: Chitosan chemistry
Elements
Magnetic Resonance Spectroscopy
Solubility
Spectroscopy, Fourier Transform Infrared
Sulfonic Acids chemistry
Temperature
Thermogravimetry
X-Ray Diffraction
Chemistry, Organic methods
Chitosan analogs & derivatives
Chitosan chemical synthesis
Water chemistry

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