CAJ | 학술논문

以bis[(3-甲氧基硅)丙基]乙二胺为功能单体,铅离子为模板分子,正硅酸乙酯为交联剂,无水乙醇与二甲基甲酰胺混合液为络合溶剂,十二胺为扩孔剂,采用预组装方法结合二重印迹技术合成得到铅分子印迹聚合物.研究了该聚合物对铅的吸附和选择识别能力,采用红外光谱及比表面测定仪进行了结构表征.结果表明,所合成的聚合物对铅离子具有良好的吸附和选择识别能力,最大吸附量为1076μg/g,对铅离子的分配系数为172.4,是其它金属离子的10倍以上.填充有印迹聚合物的分离柱应用于痕量铅的处理,具有优良的分离富集能力.
이bis[(3-갑양기규)병기]을이알위공능단체,연리자위모판분자,정규산을지위교련제,무수을순여이갑기갑선알혼합액위락합용제,십이알위확공제,채용예조장방법결합이중인적기술합성득도연분자인적취합물.연구료해취합물대연적흡부화선택식별능력,채용홍외광보급비표면측정의진행료결구표정.결과표명,소합성적취합물대연리자구유량호적흡부화선택식별능력,최대흡부량위1076μg/g,대연리자적분배계수위172.4,시기타금속리자적10배이상.전충유인적취합물적분리주응용우흔량연적처리,구유우량적분리부집능력.
. By using lead ion(Ⅱ) as the template molecule, bis[(3-trimethoxysilyl)] ethylenediamine as the functional monomer and tetraethylorthosilicate as the cross-linking agent, mixture of ethanol and dimethylformamide as the solvent of complex reaction, dodecylamine as the surfactant to engineer mesoporosity,lead molecularly imprinted polymers were synthesized with preassembling and double-imprinting technology. In this paper, the structure of the polymers was characterized, and the adsorption properties and selective recognition for lead ion was also studied. The experimental results show that the polymers has a high adsorption capacity and good selective recognition for lead ion, and the maximum adsorption capacity is 1076μg/g, distribution coefficient of lead is over 10 times of other metal ions. The glass column filled with the polymers was applied to separate and enrich trace lead in sample, The polymers shows excellent separation and enrichment ability.