Synthesis and characterization of water-soluble polyaniline films

摘要

Water-soluble polyaniline (PANI) films were synthesized by using poly(2-acrylamido-2-methyl propane-sulphonic acid) (PAMPS) as a water-soluble dopant. The aqueous solution conductivities of PAN1/PAMPS films were in the range of 10~(-1) to 10° mS/cm which were increased compared with PAMPS films aqueous solution. The structure and microstructure characteristics of PANI/PAMPS films which varied greatly with different molar ratios of aniline/AMPS were investigated by SEM, UV-vis absorption spectroscopy and XRD analysis. Moreover, the photoluminescence properties of PANI/PAMPS films were studied, and water-soluble PANI having appropriate size fitted to the increase of fluorescence emission intensity. PANI/PAMPS films were also investigated by FTIR spectroscopy and TG analysis.