引用本文:
陈益清, 孙多先, 孙绵方. 海藻酸-壳聚糖-海藻酸离子取代凝胶改性研究[J]. 应用化学,
2002, 19(7): 677-681.
Citation: CHEN Yi-Qing, SUN Duo-Xian, Anthony M SUN. The Study of Modification of Alginate-Chitosan-Alginate Ion Replacement Gels[J]. Chinese Journal of Applied Chemistry, 2002, 19(7): 677-681.
Citation: CHEN Yi-Qing, SUN Duo-Xian, Anthony M SUN. The Study of Modification of Alginate-Chitosan-Alginate Ion Replacement Gels[J]. Chinese Journal of Applied Chemistry, 2002, 19(7): 677-681.
海藻酸-壳聚糖-海藻酸离子取代凝胶改性研究
摘要:
海藻酸-壳聚糖-海藻酸(ACA)离子取代凝胶作为一种新型的离子吸附剂具有许多独特的性能,本文通过引入羧甲基壳聚糖(CMC)和低分子量壳聚糖(O-Chs),对ACA离子取代凝胶进行了改性,制备了2种改性的离子取代凝胶:ACA/羧甲基壳聚糖(CMC)/戊二醛(GA)和ACA/O-Chs/GA.并制备了一种新型的生物微胶囊羧甲基壳聚糖-壳聚糖-羧甲基壳聚糖微胶囊,实验结果表明,这几种离子取代凝胶都具有很好的离子取代性能,能够有效吸附Pb2+.其中,ACA/O-Chs/GA具有较高的离心强度,离子取代前后变形不大,溶胀比小,是一种各方面性能相对较好的离子取代凝胶.
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关键词:
- 离子取代凝胶
- / 海藻酸-壳聚糖-海藻酸
- / 海藻酸
- / 羧甲基壳聚糖
- / 微胶囊
English
The Study of Modification of Alginate-Chitosan-Alginate Ion Replacement Gels
Abstract:
A novel type of biological microcapsule consisted of carboxymethyl chitosan, chitosan and carboxymethyl chitosan(CCC) was prepared as ion replacement gels. In addition, two modified ion replacement gels, alginate-chitosan-alginate/carboxymethyl chitosan/glutaraldehyde(ACA/CMC/GA) and alginate-chitosan-alginate/oligo-chitosan/glutaraldehyde(ACA/O-Chs/GA), were prepared. All of the ion replacement gels prepared exhibited good ion replacement properties and could be used for adsorption of Pb2+ at higher rate. Among them the ACA/O-Chs/GA appeared the best one.
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Key words:
- ion replacement gel
- / alginate-chitosan-alginate
- / alginate
- / carboxymethyl chitosan
- / microcapsules
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