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In recent years, due to the conductive polymer nano-materials with excellent light, electricity, gas sensing performance and become a hot research scientists. Polyethylene dioxythiophene as a conductive polymer, in the doped or non-doped state has a high environmental stability and structural functionality. Thus, in the electrical conductor, the electrode material, an organic semiconductor, and other fields, has a wide application. A more in-depth study of polyethylene dioxythiophene and polyethylene stays dioxythiophene composites and performance. The main contents are summarized as follows: 1. Preparation of the PEDOT by chemical oxidation, obtained by changing the polymerization conditions, a series of product, respectively, with the scanning electron microscope and the four-probe of the sample particle size and conductivity test results show that: when the reaction time is 10h when, dopant TSANa the mass percentage of 10%, FeCl3 EDOT molar ratio of 0.8, the reaction temperature was 60 ℃, the PEDOT material has a higher conductivity. 2. Ammonia as a catalyst in the alcohol-water mixed solvent hydrolysis of tetraethyl orthosilicate (TEOS), preparation of the different particle size monodisperse silica (SiO2) microspheres. Respectively the samples were characterized by scanning electron microscope (SEM). Homemade nano-SiO2 as raw material, prepared under different experimental conditions, different size monodisperse surface containing sulfonic acid groups (-S03H) nano-silica (SiO2) microspheres. And the use of scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS), respectively, the sample was characterized. Finally, FeCl3 as the oxidizing agent, can make the EDOT monomer on the surface the surface of the microspheres containing a sulfonic acid group (-S03H) SiO2 oxidative polymerization occurs. The results showed that: when FeCl3 and EDOT molar ratio of 0.8, the mass percentage TSANa, 6%, the reaction time was 4h, to obtain a composite material having a higher electrical conductivity. Surface containing sulfonic acid groups (-S03H) polystyrene (PS) microspheres successfully prepared by the emulsion polymerization method and the use of a scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) were carried out on samples characterized. And then to the surface of polystyrene microspheres containing a sulfonic acid group (-S03H) as raw materials, and successfully prepared having a good conductivity of PEDOT / PS composite material. The results show that: the polystyrene surface with a sulfonic acid group (-S03H) as raw materials, and the reaction time was 10h the dopant TSANa mass percentage of 9%, reaction temperature is 60 ° C, obtained PEDOT / PS The composite material has a higher conductivity.
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