Study on the coordination of crosslinked chitosan with Zn2+

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College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China [1 ]
不详 [2 ]
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Lizi Jiaohuan Yu Xifu | 2007年 / 5卷 / 469-474期
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In this paper the influence of Zn2+ on the structure and performance of chitosan crosslinked by aldehyde and epichlorohydrin (AECTS) were investigated. The structure of adsorption products was characterized by Fourier transform IR, XRD, TG, DSC and SEM. The results showed that the adsorption is realized by binding-NH2 groups in AECTS with Zn2+. Compared with AECTS, the structure and properties of AECTS-Zn2+ have been markedly changed. Its crystallinity and generally thermal stability decreased. The metal ion had evident catalyzing function to the decomposition of AECTS main chains. The morphology studies by SEM which show the loaded AECTS change their surface dramatically.
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