Synthesis and Characterization of Isobutyl-Chitosan-Ca(II) Complexes

Abstract:

Through an alkylation reaction under alkaline conditions, isobutyl was introduced to chitosan to form isobutyl-chitosan. Isobutyl-chitosan-Ca (II) complex was synthesized at pH 6.0 by a reaction of isobutyl-chitosan and calcium chloride. The structure of isobutyl-chitosan-Ca (II) complexes was characterized by ultraviolet-visible diffuse reflectance spectrum (UV-Vis) and FT-IR spectrum, and the content of calcium was measured by inductively coupled plasma-optical emission spectrometry (ICP-OES). The FT-IR spectra of isobutyl-chitosan and chitosan showed that structure of isobutyl-chitosan-Ca (II) complexes was obviously different with isobutyl-chitosan. Results of UV spectra showed that the maximum absorption of isobutyl-chitosan and isobutyl-chitosan-Ca (II) were at 310 nm and 324 nm, respectively. The content of calcium was 1.6026%, measured by ICP-OES.

• Periodical: Materials Science Forum (Volumes 809-810)
• Pages: 503-506
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.809-810.503
• Online since: December 2014
• Authors: Sheng Nan Zhao, Chang Ping Wei*, Li Dan Dong, Xin Liu, Jing Li, Feng Ming Wang
• Keywords: Chitosan, Isobutyl-Chitosan, Isobutyl-Chitosan-Ca (II)

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