【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。更多还原

【Abstract】 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 Cu2+、Pb2+、Ni2+、Zn2+、Ag+、Hg2+ had been studied. The result show that the newly synthesized resins have highly selective for Ag+ and Hg2+, the resin has no affinity for Cu2+、Pb2+ and Ni2+, the length of spacer arm has effect on the adsorption capacities.更多还原