中文摘要：

本研究采用二氧化硅胶体晶模板法制备了孔径为890nm的三维有序大孔交联聚苯乙烯（3DOMCLPS）,通过亲核取代反应将亲水性悬臂（二缩三乙二醇,TEG）接枝到3DOMCLPS孔壁,利用TEG另一端的活性羟基,将2-巯基苯并噻唑（MBZ）引入到TEG链段末端.利用红外光谱及元素分析对产物进行了表征.扫描电镜分析表明功能化后的3DOMCLPS保留了结构有序、孔与孔之间相互连通的微观结构特点.测定了该功能化3DOMCLPS对Ag＋和Hg2＋离子的饱和吸附容量,饱和吸附容量分别为0.78和0.39mmol/g.研究了不同温度下的吸附动力学,相互连通的有序大孔结构有利于引入长链亲水性悬臂,促进孔内外的物质交换.

英文摘要：

Three-dimensionally ordered macroporous cross-linked polystyrene （3DOM CLPS） with pore size of 890 nm was prepared by sacrifice template method.The hydrophilic spacer arm （triethylene glycol,TEG） was grafted to the 3DOM CLPS via nucleophilic substitution reaction.The 2-mercaptobenzothiazole （MBZ） group was attached via TEG to framework of 3DOM CLPS.The final product was characterized by FT-IR and element analysis.In addition,the results of SEM showed that the ordered and interconnected macroporous structure is well preserved after functionalization.The relative large pores of 3DOM CLPS allow introduction of longer polymer chains to the framework,and not to plug the channels.The interconnected channels can accelerate the materials exchange.Furthermore,the adsorption capacities and adsorption kinetics of the functionalized 3DOM CLPS were tested.The adsorption capacities for Ag＋ and Hg2＋ were 0.78 and 0.39 mmol/g,respectively.The results indicated that introduction of hydrophilic spacer arms between the 3DOM framework and heterocyclic functional groups improve the adsorption capacity.The adsorptions kinetic at different temperatures were also investigated.