学士学位论文题目：4-甲基-N-苄基吡啶离子液体的合成与表征姓名院系专业年级学号指导教师年月日4-甲基-N-苄基吡啶离子液体的合成与表征摘要：离子液体由于其具有良好的物理化学性质而在很多领域被广泛应用。本文首先以苄基溴与4-甲基吡啶反应合成了溴化4-甲基-N-苄基吡啶盐[MBPy]Br，[MBPy]Br再分别与NaBF4、KPF6进行复分解反应制备了亲水性离子液体四氟硼酸4-甲基-N-苄基吡啶[MBBPy]BF4和憎水性离子液体六氟磷酸4-甲基-N-苄基吡啶[MBPy]PF6，测定了两种离子液体的熔点、溶解性、电导率等物理性质。结果表明，[MBPy]BF4的熔点为124℃，[MBPy]PF6的熔点为178℃；二者都易溶于极性溶液中，且随着溶液极性的增大溶解性增大；电导率随着温度和浓度的增大而增大。两种离子液体的结构经元素分析和核磁光谱进行表征，与预期结构相符。关键词：离子液体；4-甲基吡啶；合成；测定；表征Thesynthesisandcharacterizationof4-methyl-N-benzylpyridineionicliquidsLiuCuibo(SchoolofChemistryandMaterialsScienceLudongUniversityYantai264025)Abstract：Becauseofitsgoodchemicalproperties，Ionicliquidhasbeenwidelyusedinmanyareasandhasbecometheidealofthetraditionalorganicsolventalternatives.Inthispaper,ionicliquidsofpyridineistheitemofourstudy,Firstly，N-benzyl-4-methyl-pyridinebromidewassynthesizedseparatelyfrom4-methyl-PyridineandBenzylbromide([TMPy]Br)andthenthehydrophilicionicliquids[TMPy]BF4andhydrophobicionicliquids[TMPy]PF6;atthesametime，themeltingpointofionicliquids，thesolubility，electricalconductivityandotherphysicalpropertieswasdetermined.Wecametotheconclusionthatthemeltingpointof[TMPy]BF4is124℃andthemeltingpointof[TMPy]PF6is178℃.Botharesolubleinpolarsolution,andthesolubilityincreasedwiththeincreasingpolarityofthesolution.Theirconductivityincreasewiththeadditionofthetemperatureandconcentration.Elementalanalysiswasalsostudied.Finally,thechemicalstructureof[TMPy]BF4and[TMPy]PF6wereconfirmedbyHNMR.KeyWords：IonicLiquids；4-methyl-pyridine；Synthesis；Characterization目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc232955156"1．前言PAGEREF_Toc232955156\h1HYPERLINK\l"_Toc232955157"1.1离子液体的研究进展PAGEREF_Toc232955157\h1HYPERLINK\l"_Toc232955158"1.2离子液体的组成与制备PAGEREF_Toc232955158\h1HYPERLINK\l"_Toc232955159"1.3离子液体的特点PAGEREF_Toc232955159\h2HYPERLINK\l"_Toc232955160"1.4离子液体的应用PAGEREF_Toc232955160\h3HYPERLINK\l"_Toc232955161"1.4.1离子液体在色谱分析中的应用PAGEREF_Toc232955161\h3HYPERLINK\l"_Toc232955162"1.4.2在萃取分离中的应用PAGEREF_T