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.
出处
《应用化学》
CAS
CSCD
北大核心
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
