溴代-1-甲基-3-己基咪唑离子液体表面分子印迹聚合物的制备及选择性吸附  

Preparation of brominated-1-methyl-3-hexyl imidazolium ionic liquid surface molecular imprinted polymer and the performance of selective adsorption

作　　者：朱桂芬[1] 苏现伐[1] 王莉[1] 樊静[1] 

机构地区：[1]河南师范大学环境学院黄淮水环境与污染防治省部共建教育部重点实验室河南省环境污染控制重点实验室,河南新乡453007

出　　处：《化学研究与应用》2014年第2期211-217,共7页Chemical Research and Application

基　　金：国家自然科学基金项目(20977025)资助;河南省重点科技攻关项目(132102210436)资助;河南省基础与前言研究计划项目(122300410283)资助

摘　　要：以聚苯乙烯-二乙烯基苯颗粒为载体,制备溴代-1-甲基-3-己基咪唑离子液体表面印迹聚合物;通过扫描电镜、红外光谱、紫外光谱、比表面积及热分析等手段,对聚合物进行表征;静态实验结果显示,聚合物对模板底物有较强的吸附能力,印迹和非印迹聚合物对模板底物的饱和吸附量分别为667和322μmol g^(-1);动力学实验表明,印迹聚合物在1.0 h内能够达到吸附平衡,其吸附特征符合假二级动力学方程;选择性实验表明,印迹聚合物能够从结构类似物中选择性吸附模板分子。A bromination-l-methyl-3-hexyl ionic liquid （ [ C6 mira ] Br）surface imprinting polymer was prepared using poly （styrene- divinylbenzene） particles as the carrier. And the polymer was characterized by scanning electron microscopy,infrared spectrum, UV spectrum, surface area,pore size and thermal property measurements. The adsorption characteristics and selective recognition per- formance of the polymer for[ Crmim] Br and its structural analogues were investigated by the static adsorption experiments. It was shown that the maximum binding capacities of[ Crmim] Br on the MIP and the NIP were 667 and 322μmol g-1, respectively. The binding process could be described by pseudo-second order kinetic,and the adsorption equilibrium was achieved in 1.0 h. The im- printing polymer could recognize the template molecule selectively from its structural analogues.

关 键 词：离子液体 分子印迹聚合物 吸附 

分 类 号：O647.33[理学—物理化学]