交联聚苯乙烯负载聚二乙醇胺型支化分子的孔结构  

PORE PROPERTIES OF CROSSLINKED POLYSTYRENE SUPPORTED POLYDIETHANOLAMINE-TYPED ‘DENDRIMER-LIKE’ HYPERBRANCHED MOLECULES

作　　者：孙昌梅[1] 唐清华[1] 曲荣君[1] 纪春暖[1] 王春华[1] 成国祥[2] 

机构地区：[1]烟台师范学院化学与材料科学学院,烟台264025 [2]天津大学材料科学与工程学院,天津300072

出　　处：《离子交换与吸附》2007年第4期307-313,共7页Ion Exchange and Adsorption

基　　金：中国博士后科学基金(2003034330);山东省自然科学基金(Y2005F11);山东省中青年学术骨干学术带头人培养对象基金;烟台师范学院科研基金(No.032912;20052901;042920)

摘　　要：以氯球和二乙醇胺为原料,合成了两种交联聚苯乙烯负载聚二乙醇胺型支化分子螯合树脂PS-EDA和PS-EDA2。77K温度下,采用氮气吸附法测定了氯球和这两种螯合树脂的吸附/脱附等温线,并计算了孔径分布、BET表面积、平均孔径、总孔体积等参数。研究结果表明,反应后螯合树脂中的孔分布明显变宽。孔径分析结果和吸附实验结果都表明,PS-EDA对金属离子的吸附性能要优于PS-EDA2。Two novel chelating resins-crosslinked polystyrene supported polydiethanolaminetyped ＇dendrimer-like＇ hyperbranched molecules （PS-EDA and PS-EDA2） were synthesized in this paper. The adsorption and desorption isothems of the resins were measured by nitrogen adsorption at 77K on ASAP 2020 system. Their pore size distributions, BET surface areas, the BJH average pore sizes and the BJH cumulative pore volumes were also calculated. The results showed that the pore size distribution of the resins became significantly broader after the reactions, which was probably caused by the crosslinked reaction during the synthesis process. Both the results of the pore structure analysis and adsorption for metal ions showed that the capability of PS-EDA was better than that of PS-EDA2.

关 键 词：螯合树脂 合成 孔结构 吸附 

分 类 号：TQ425[化学工程]