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摘要离子液晶作为自组装的离子液体，是一类完全由阴阳离子构成的液晶态化合物。离子液晶结合了液晶和离子液体两种物质的优良特点，不仅有能对外界光电磁热刺激做出响应的液晶特性，还具备宽电化学窗口、低蒸汽压、高热稳定性、等离子液体、良好的离子电导率特征。季鏻盐离子液晶的研究报道相对较少，但其优点比较明显。与相应结构的季与铵盐相比，季鏻盐更易合成，而且介晶相温度范围要宽，并具有更高的热稳定性与更优越的液晶态性能。本实验合成了三种单条长链烷基季鏻盐离子液晶，而后分别用核磁共振（NMR）、热重分析仪（TGA）、偏光显微镜（POM）等表征方法分析了其结构与相态性能。最后将季鏻盐与卟啉化合物共混，研究其电致化学发光性能。以探寻出用途较为广泛的季鏻盐离子液体或离子液晶，为季鏻盐的应用提供新的结构信息与理论依据。 41305
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毕业论文关键词：季鏻盐离子液体/液晶；自组装；卟啉；电致化学发光
Title Studies on Phosphonium-based Self-assembly Designs and Porphyrin-based Electroluminescent Properties Abstract Ionic liquid crystal as a self-assembly ionic liquid, is a kind of liquid crystal compounds entirely composed by anionic-cationic.Ionic liquid crystal combination the excellent characteristics of liquid crystal and ionic liquid, not only have liquid crystal features,can respond to photo-electro-magnetic; also have liquid ionic characteristics ,with wide electrochemical window, low vapor pressure, high thermal stability, good ionic conductivity and so on. The Research of phosphonium ionic liquid crystal is relatively less, but its advantage is obvious.Compared with ammonium salt with corresponding structure, phosphonium are more easier to compound, and the mesomorphic phase temperature range is wider, has higher thermal stability and superior liquid crystal performance.This experimental compound three kinds of phosphonium with a single long chain, and then respectively using nuclear magnetic resonance (NMR), thermogravimetric analyzer (TGA) and polarizing microscope (POM) analyses the structure and phase behavior performance.Finally alloying the phosphonium and porphyrin, research the Electrochemiluminescence performance.To explore the phosphonium ionic liquid crystal or ionic liquid with wider use, provide a new structure information and theoretical basis for the application of the phosphonium salt information .
Keywords ： phosphonium ionic liquid crystal/ionic liquid;self-assembly; porphyrin; Electrochemiluminescence
目录
1.绪论.7
1.1离子液体7
1.1.1离子液体的合成.7
1.1.2离子液体的应用.8
1.2季鏻盐离子液晶.10
1.2.1季鏻盐离子液晶的研究现状10
1.2.2季鏻盐离子液晶的应用10
1.2.3季鏻盐离子液晶的表征11
1.3卟啉类化合物.12
1.3.1卟啉类化合物的基本性质12
1.3.2卟啉类化合物的应用13
1.4本文研究工作13
1.4.1课题的目的与意义13
1.4.2课题研究内容13
2.单条长链烷基季鏻盐的合成与表征.14
2.1引言14
2.2实验内容14
2.2.1实验试剂14
2.2.3实验器材15
2.3实验流程及步骤16
2.3.1实验流程16
2.3.1实验步骤16
2.4实验结果讨论与分析18
2.4.1核磁共振（NMR）表征.18
2.4.2季鏻盐液晶熔点测定22
2.4.3偏光显微镜恒温热台的温度校正23
2.4.4季鏻盐热稳定性的测定24
3含卟啉的季鏻盐的ECL生物传感性能研究.25
3.1引言25
3.2实验部分.25
3.2.1实验试剂25
3.2.2实验仪器25