The Study Of Synthesis And Properties On Composites About Graphene Oxide/Aniline Derivatives

Based on graphene oxide’s excellent mechanical properties and the ability of the conduction of electron, three composite materials were designed and fabricated in this paper, using graphene oxide(GO) served as dopant and three achieved polymers palyed as substrate, namely protonated polyschiff base/GO hydrogel, PDAAB/Ag/GO conductive composite material, polyaniline(PANI)–polystyrene(PS)/GO conductive composite material. Now all work is summarized as follows:(1) The protonated Schiff base and GO composite materials with regular morphology was made by mixing polyschiff base and GO dispersion solution. Studies have shown that the composite material has a relatively large surface area, and a good adsorption properties for Orange G dye(416.52 mg/g). Additionally, the composite material possesses conductive properties(1.67×10-3 S/cm).(2) By in-situ redox method, 4,4’-azo-phenylenediamine(DAAB) and the Ag+ of silver nitrate reacted, PDAAB/Ag composite was produced. GO, acting as a dopant, was doped into the composite, The PDAAB/Ag/GO composite was with the morphology of granular silver attached to the rodlike PDAAB. The electrical conductivity have been studied and it changed when was given different times of UV irradiation, microstructure changed and a controllable conductivity under UV irradiation/ Visible light.(3) By mixing the solution method, the polystyrene(PS) nanospheres were prepared in advance and dispersied in water uniformly. PANI-PS core-shell structure composite with an uniform microstructure was produced by making the hydrochloric acid doped polyaniline coated on the surface of PS. Finally the GO/PANI-PS nanocomposites was obtained. The work has studied the changes in the conductivity of the composite material under different filter threshold value, and ultimately find its maximum conductivity values which is up to 0.12 S/cm.