聚苯乙烯负载2-氨基-5-乙基-1,3,4-噻二唑螯合树脂的合成及其吸附性能  

SYNTHESIS OF POLYSTYRENE-SUPPORTED 2-AMINO-5-ETHYL-1,3,4-THIADIZOLE HETROCYCLIC FUNCTIONAL CHELATING RESIN AND ITS ADSORPTION PROPERTIES

作　　者：孙言志[1] 纪春暖[1] 唐清华[1] 孙昌梅[1] 王春华[1] 曲荣君[1] 赵美泽[2] 

机构地区：[1]烟台师范学院化学与材料科学学院,山东烟台264025 [2]烟台师范学院设备处,山东烟台264025

出　　处：《离子交换与吸附》2005年第5期431-436,共6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(Q99B15);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(032912)

摘　　要：以氯甲基化聚苯乙烯(PS)、一缩二乙二醇(DEG)、二缩三乙二醇(TEG)为原料,通过亲水性悬臂将杂环功能基2-氨基5-乙基-1,3,4-噻二唑(AETZ)引入到聚苯乙烯-二乙烯苯母体中,合成了两种新型螯合树脂(PS-DEG-AETZ,PS-TEG-AETZ),并对两种树脂进行了红外光谱和元素分析表征。测定了该树脂对Cu2+、Pb2+、Zn2+、Ag+、Hg2+等金属离子的吸附性能。结果表明,PS-DEG-AETZ,PS-TEG-AETZ对Hg2+、Ag+的静态吸附量分别为0.41mmol/g和0.30mmol/g,对Cu2+、Pb2+、Zn2+的吸附量为零,表现出很好的吸附选择性,亲水性悬臂长度的增加有利于树脂吸附量的增加。Two new chelating resins with hetrocyclic functional group （1-amino-5-ethyl-1,3,4- thiadizole） were synthesized from macroporous chloromethylated polystyrene through hydrophilic polyvinyl alcohol spacer arm. Their structures were characterized by elemental analysis and infrared spectra. Their adsorption properties for Cu^2＋, Pb^2＋, Ni^2＋, Zn^2＋, Ag^＋, Hg^2＋ had been studied. The result show that the newly synthesized resins have highly selective for Ag^＋ and Hg^2＋, the resin has no affinity for Cu^2＋, Pb^2＋ and Ni^2＋, the length of spacer arm has effect on the adsorption capacities.

关 键 词：螯合树脂 悬臂 合成 吸附 金属离子 

分 类 号：TQ425[化学工程]