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Phosphoramidate‐functionalized Merrifield resin: synthesis and application in actinide separation
Polymer International ( IF 2.9 ) Pub Date : 2018-01-25 , DOI: 10.1002/pi.5513
Dhrubajyoti Das 1 , Akella Sivaramakrishna 1 , CVS Brahmmananda Rao 2 , N Sivaraman 2 , Kari Vijayakrishna 1
Affiliation  

A novel phosphoramidate‐functionalized polymeric resin was synthesized by anchoring diethyl (3‐(1H‐imidazol‐1‐yl)propyl)phosphoramidate group with chloromethylated polystyrene divinylbenzene resin. The grafted resin was characterized using elemental analysis, Fourier transform infrared, solid‐state 31P NMR energy‐dispersive X‐ray spectroscopies, and thermogravimetric analysis. The surface morphology of the functionalized resin was investigated using scanning electron microscopy and the surface area was measured with Brunauer–Emmett–Teller analysis. Sorption affinities of the functionalized resin towards actinides such as Th(IV) and U(VI) were determined under various concentrations of nitric acid solution (0.01–6 mol L−1). Desorption of the actinides from the loaded resin was performed using a solution of 0.01 mol L−1 nitric acid. Reusability of the grafted resin was studied over various successive cycles and the stability of the functional groups on the synthesized resin was monitored using various analytical techniques. © 2017 Society of Chemical Industry

中文翻译:

磷酰胺基官能化的Merrifield树脂:and系元素分离的合成与应用

通过将二乙基(3-(1 H-咪唑-1-基)丙基)氨基磷酸酯基团与氯甲基化的聚苯乙烯二乙烯基苯树脂锚固来合成新型的氨基磷酸酯官能化的聚合物树脂。使用元素分析,傅立叶变换红外光谱,固态31 P NMR能量分散X射线光谱和热重分析对接枝树脂进行了表征。使用扫描电子显微镜对功能化树脂的表面形态进行了研究,并通过Brunauer–Emmett–Teller分析测量了表面积。在各种浓度的硝酸溶液(0.01–6 mol L -1下)下测定功能化树脂对act系元素(如Th(IV)和U(VI))的吸附亲和力)。使用0.01 mol L -1硝酸的溶液进行the系元素从负载树脂的解吸。在各种连续循环中研究了接枝树脂的可重复使用性,并使用各种分析技术监测了合成树脂上官能团的稳定性。©2017化学工业协会
更新日期:2018-01-25
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