γ辐照下丙烯酰胺接枝壳聚糖链制备杂化吸附剂

Q4 Chemistry
E. K. Fomina, E. V. Grinyuk, I. A. Klimovtsova, D. L. Kudryavsky, A. A. Fedorenko, Y. D. Ivanchikov, D. I. Shiman, I. A. Salnikova, O. Yakimenko
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引用次数: 0

摘要

用丙烯酰胺与壳聚糖链辐射接枝的方法合成了杂化水凝胶。利用红外光谱、x射线衍射和同步热分析对丙烯酰胺接枝壳聚糖的结构进行了表征。确定了多糖的羟基和氨基都是壳聚糖大分子上生长的聚丙烯酰胺链的接枝中心。研究了试剂配比对所得水凝胶吸附性能和流变性能的影响。采用碱性水解法对丙烯酰胺接枝壳聚糖水凝胶进行了化学改性,考察了水解对水凝胶对水和Cu(II)离子吸附能力的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Obtaining hybrid absorbents by grafting acrylamide onto chitosan chains under gamma irradiation
Hybrid hydrogels have been synthesized by radiation grafting of acrylamide to chitosan chains. The structure of the acrylamide-grafted chitosan was examined using FTIR spectroscopy, X-ray diffraction and simultaneous thermal analysis. It has been determined that both hydroxyl and amino groups of the polysaccharide are the grafting centers of growing polyacrylamide chains on the chitosan macromolecules. The effect of the reagents ratio on the sorption and rheological properties of the obtained hydrogels has been studied. Hydrogels based on acrylamide-grafted chitosan were modified chemically by alkaline hydrolysis, and the effect of hydrolysis on the sorption capacity of hydrogels with respect to water and Cu(II) ions was examined.
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CiteScore
0.30
自引率
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38
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