新型假冠醚聚合物的合成与对金属离子的吸附特性  

Synthesis and Adsoption Property for Metal Ion of Polymeric Pseudo-Crown Ether

作　　者：刘淑芬[1] 郑科 曲荣君[1] 成国祥[3] 

机构地区：[1]烟台师范学院,烟台264025 [2]烟台燃气研究所 [3]天津大学材料科学与工程学院

出　　处：《应用化学》2003年第2期125-129,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金 ( 2 990 60 0 8)资助项目

摘　　要：合成了 2种新型聚合物假冠醚 ,研究了聚合物对金属离子的静态吸附特性。结果表明 ,在 2 5℃时聚合物对Ag+、Hg2 +和Pb2 +的浓度分别为 0 0 4 3 0、0 0 4 0 1和 0 0 4 1 6mol/L时的吸附容量分别为 1 0 0 6、0 91 9和 0 65 8mmol/g。对Ag+的吸附伴随明显的氧化还原反应。聚合物及其与Ag+的配合物的红外光谱表明 。Two novel polymeric pseudo-crown ethers were synthesized by three simple reactions. Their adsorption properties for metal ions were studied. The results showed that at 25 ℃ the polymers exhibited adsorption capacities for Ag +,Hg 2+ and Pb 2+ respectively of 1.006,0.919 and 0.658 mmol/g, when the ion concentration was 0.043 0,0.040 1 and 0.041 6 mol/L, respectively. There occurred an obvious oxidation- reduction course of adsorption of Ag +. The structures of the polymers and its complex with Ag + were studied by FTIR spectra. The adsorption appeared to be a result of chelated chain formation between oxygen of crown ether and benzylalcohol with metal ions.

关 键 词：假冠醚聚合物 合成 金属离子 吸附特性 银(Ⅰ) 汞(Ⅱ) 铅(Ⅱ) 

分 类 号：O633.1[理学—高分子化学] O647.3[理学—化学]