超交联聚合物封装硫及其红外拉曼光谱研究

Study on Hyper-Cross-Linked Polymer Encapsulated Sulfur by FT-IR and Raman Spectroscopy

我国盐湖中储备有大量的铯,从盐湖卤水中高效分离铯具有重要意义。超交联聚合物是基于傅克烷基化反应制备的一类聚合物。制备了一种超交联聚合物并将硫封装在其孔道内,通过硫与铯的路易斯酸碱相互作用提高对铯的选择性。通过红外和拉曼光谱进行了表征。表征结果为研究该类固相萃取剂用于盐湖铯的分离提取奠定了基础。

There are extremely high reserves of Cs dissolved in the salt lake brines,which been fully utilized.Hence,exploring methods for efficient extraction of Cs from salt lake brines has significant economic value.In this paper,a Hyper-cross-linked polymers(HCPs)was prepared based on Friedel-Crafts reaction and sulfur was encapsulated in its pores.The selectivity of cesium was improved by the interaction between sulfur and Cs^+.It was characterized by Raman and FT-IR spectroscopy.The characterization results laid a foundation for the study of this kind of solid phase extraction agent for the Cs+separation fromsalt lakebrines.