| Conducting polymers are widely studied and applied due to their high specific capacity, high electric conductivity, wide temperature range, without pollution, particular doped and de-doped and so on. Ionic liquids (ILs) are attracting much attention for applications in“Green solvents”and new catalyst systems, bring the revolution of green chemistry。In recent years, Ionic liquids and conducting polymers are attracting much attention and extensively studied. ILs have been mainly used as polymerization media in several types of polymerization processes. However, application of ILs in polymer science is not limited to traditional polymerization media, ILs are also introduced to conducting polymers as the components of conducting polymer backbones. The new polymers (poly(IL)) combine the advantages of ILs and the conducting polymers for their good electrical conductivity, stable potential windows, high stability and so on. And poly(IL) can be used as novel electrolytes and electrodes for applications in cells and electric capacitors, it can improve the safety, stability and durability of battery cells and electric capacitors. Poly(IL) have promising potential for application in cells and electric capacitors.In this paper, poly(IL) were prepared by chemical method or electrochemical method. Their structure, micrographs, properties and applications have been investigated by fourier infrared spectra(FTIR), 1H nuclear magnetic resonance spectra(1H NMR), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetry analysis, ionic conductivity measurement, cyclic voltammetry (CV) and galvanostatic charge–discharge method, etc. The main points of this dissertation are summarized as follows:(1) A new type of polymerizable ionic liquid 1-(3-Aminobenzyl)-3-methyl imidazolium chloride (AMIC) has been designed and synthesized, and and we used the AMIC as monomer to prepare conducting polymer PAMIC. The structure and micrograph were characterized by mass spectrometry (MS), FTIR, EDX and SEM. Moreover, ionic conductivity measurement suggests PAMIC has a high ionic conductivity around 23.7μS·cm-1,higher than that of the commercial Polyaniline. The thermogravimetry analysis demonstrates the PAMIC has a good thermal stability.(2) Ionic liquid 1-(3-Aminobenzyl)-3-methyl imidazolium hexafluorophosphate [AMI]PF6 were synthesized by ion exchange of AMIC and NH4PF6, then the polymer of [AMI]PF6 has been prepared by electrodeposition on Au electrode surface via pulse galvanostatic method in 1-butyl-3-methylimidazolium hexafluorophosphate solution. The structure and micrograph of obtained poly[AMI]PF6 film were characterized, and the electrochemical behavior of the poly[AMI]PF6 was investigated by cyclic voltammetry (CV) and galvanostatic charge–discharge method in 0.2 mol·L-1 H2SO4 aqueous solutions or pure IL [bmim]PF6. The poly[AMI]PF6 film shows good capacitive properties in 0.2 mol·L-1 H2SO4 aqueous solution, and the maximum specific capacitance of the polymer is about 167 F·g-1 at the charge–discharge current density of 2 mA·cm-2 in acidic aqueous solution.(3) 2-methylimidazole and 1,3-Dichloro-4,6-dinitrobenzene reacted to form the polymer poly[Dbz-mim]Cl. The polymer was characterized by 1H NMR, FTIR, XRD, TGA and conductivity measurement, and the electrochemical behavior of the poly[AMI]PF6 was investigated by cyclic voltammetry (CV) and galvanostatic charge–discharge method in 0.2 mol·L-1 H2SO4 aqueous solutions or pure IL [bmim]PF6. 1H NMR, FTIR results confirmed the structure of poly[Dbz-mim]Cl. XRD result reveal its amorphous structure. The polymer has excellent thermostability under 170°C. The ionic conductivity of the polymer is 24.6μS·cm-1, higher than the commercial polyaniline. Moreover, the polymer shows good electrochemical properties. |
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