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聚合物假冠醚研究 (II)新型聚合物的合成、吸附特性与绿色应用
STUDIES ON POLYMERIC PSEUDOCROWN ETHER (II) Synthesis and Adsorption Characterization and Greenish Application of New Polymers
【摘要】 合成了两种假冠醚型聚合物。研究了聚合物对金属离子的静态吸附性能。结果表明,聚合物对Ag+,Pb2+,Hg2+ 表现出良好的吸附特性,且聚合物B的吸附能力优于聚合物A。吸附实验表明,除冠醚氧原子参与配位外,-CH2OH的氧原子亦参与了配位。聚合物B对Ag+的吸附过程中存在着明显的氧化还原现象,Ag+ 被还原为Ago,而聚合物分子中的 -CH2OH被氧化成为 -COOH。已初步将研究成果应用于本化学实验室的绿色化建设中。
【Abstract】 Two new polymeric Pseudo crown ethers have been synthesized. Static adsorption characterizations of polymers for metal ion were studied. The results showed that the polymers have good adsorption properties for Ag+, Pb2+, and Hg2+. In the above mentioned polymers, both the oxygen from crown ether chains and the oxygen from CH2OH groups make the contribution to the metal ions chelating.There is oxidation-reduction in the adsorption process of Ag+ on polymer B namely Ag was reduced to Ag, the -CH2-OH in the molecule of polymer was oxidized to -COOH respectively. The polymers have been primarily used in our chemical laboratory.
【Key words】 Polymeric pseudo crown ether; Synthesis; Adsorption; Adsorption mechanism; Greenish application.;
- 【文献出处】 离子交换与吸附 ,Ion Exchange and Adsorption , 编辑部邮箱 ,2002年06期
- 【分类号】O647.3
- 【被引频次】11
- 【下载频次】106