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Schiff碱型壳聚糖高分子冠醚的合成和表征
Synthesis and Characterization of Schiff Base Type Chitosancrown Ethers
【摘要】 将A’-甲酰基苯并15-冠-5和A'-甲酸基苯并18-冠-6与壳聚糖(或交联壳聚糖)分子中的氨基反应,使冠醚单元接枝到高分子壳聚糖上,合成了Schiff碱型壳聚糖冠醚。经元素分析、IR,X-粉末衍射分析和固体13CNMR分析表征了其结构。实验结果表明壳聚精冠醚与预期结构相符。并初步考察了其对某些金属离子的吸附选择性。
【Abstract】 Pour new Schiff base chitosan-crown ethers were prepared by the reaction of 4’-formyl benzo-15-crown-5 and 4’-formyl benzo-18-crown-6 with chitosan or crosslinked chitosan. Their structureswere confirmed by infra-red spectra analysis, X-ray diffraction analysis and solid-state 13C NMR analysis.The experimental results showed that the structures of all chitosan-crown ethers were as expected.
【关键词】 Chitosan;
Schiff base;
Crown ethers;
Synthesis;
Charaterization.;
【Key words】 Chitosan; Schiff base; Crown ethers; Synthesis; Charaterization.;
【Key words】 Chitosan; Schiff base; Crown ethers; Synthesis; Charaterization.;
【基金】 国家自然科学基金
- 【文献出处】 合成化学 ,CHINESE JOURNAL OF SYNTHETIC CHEMISTRY , 编辑部邮箱 ,1999年01期
- 【分类号】TQ316.343
- 【被引频次】13
- 【下载频次】241