论文编码首都师范大学本科毕业论文铜离子配位儿茶酚分子印迹膜的合成TheSynthesisofcopper(II)-CatecholcomplexMolecularlyImprintedPolymerMembranes作者徐哲院系化学系专业应用化学学号1060700035指导老师朱若华完成日期2010年5月20日中文提要儿茶酚是重要的化工原料，但对人体有很大毒性，对环境有一定污染。分子印迹技术是近年来发展起来的新的研究领域，有很大的研究前景和应用空间。本实验采用二甲基丙烯酸乙二醇酯（EDMA，交联剂）、甲基丙烯酸缩水甘油酯（GMA、支撑膜的单体）、正丙醇（致孔剂）、1,4—丁二醇（致孔剂）、N-溴代丁二酰亚胺（NBS，溴化剂）、偶氮二异丁腈（AIBN，引发转移终止剂），聚合形成基体膜。而后将儿茶酚与铜的配合物（模板）、咪唑丙烯酸乙酯(功能单体)用紫外光引发聚合的方法合成了铜离子配位儿茶酚分子印迹聚合膜。并对溴化剂与交联剂用量比例、铜与儿茶酚用量比例、光照仪器等合成条件，作了详细的研究和优化。最终采用溴化剂与交联剂摩尔数比例为1:3,儿茶酚与氯化铜摩尔数比例为1:3，光照时使用石英瓶的条件合成铜离子配位儿茶酚分子印迹膜。用乙二胺四乙酸二钠（EDTA的二钠盐）溶液将儿茶酚与铜的金属配合物洗脱下,来并采用紫外可见光吸光光度的方法，测定儿茶酚的吸光光度，检验儿茶酚分子印迹膜的吸附效果。实验结果表明在一定浓度铜离子存在下，分子印迹膜对模板分子儿茶酚表现出一定的吸附性。此方法十分简单，并易于操作。关键字:分子印迹膜儿茶酚-铜配合物紫外光引发聚合紫外可见光吸光光度法AbstractCatecholisanimportantchemicalrawmaterial,butitisverytoxicforhumanbody,andcanmakeenvironmentalpollution.Molecularimprintingtechnologyasanewareasofresearchdevelopedinrecentyears,hasgreatprospectsforthestudyandapplication.Inthisstudy,usingethyleneglycoldimethacrylate(EDMA,crosslinkingagent),glycidylmethacrylate(GMA,supportingmembranemonomer),n-propanol(porogen),1,4-succinicethanol(porogen),N-bromosuccinimide(NBS,brominatedagent),azobisisobutyronitrile(AIBN,Photoiniferter),thebasemembranewassynthesis.Thecopper(II)-catecholcomplexmolecularlyimprintedpolymermembraneswassynthesizedusingcomplexesofcatecholandcopperasthetemplate,imidazoleethylacrylateasthemonomerbyUVpolymerizationmethod.Conditionsforthesynthesiswerestudiedandoptimizedindetail,suchasbrominatedagentandcrosslinkerratio,theamountofcopperandcatecholratioaswellasthelightingequipments.EDTAsolutionwasusedtoelutionthemetalcomplexesofcatecholandcopper(II),determinatingtheabsorbanceofcatecholandadsorptionofmolecularimprintedmembranetocatechol.Experimentalresultsshowthatinthepresenceofcopperion,molecularimprintedmembraneforthetemplatemoleculecatecholshowsomeadsorption.Thismethodissimpleandeasytooperate.Keywords:Molecularlyimprintedmembranecatechol-copper(II)complexUV-polymerizationUV-visiblespectrophotometry.目录1.前言51.1分子印迹技术......................................................................................................................................51.2儿茶酚及其传统检测方法..................................................................................................................61.3儿茶酚分子印迹膜的设计..................................................................................................................62.实验部分82.1主要仪器与试剂..................................................................................................................................82.1.1主要仪器.................................................................................................................................82.1.2主要试剂及试剂的预处理....................................
