| Abstract
| - We report that, for the first time, multiwalled carbon nanotube (MWNT)−polyaniline (PANI) nanocompositeswere readily prepared via electrostatic adsorption in their mixed aqueous media. The pristine MWNTs werefirst oxidized to add some negative charges, and the PANI nanofibers, to add some positive charges, werefabricated by aqueous/organic interfacial polymerization, and then the MWNT−PANI composites were preparedby rapidly mixing the negatively charged oxidized MWNT aqueous colloid and the positively charged PANIaqueous colloid. Scanning and transmission electron microscopies (SEM and TEM, respectively) and Ramanand Fourier-transform infrared (FTIR) spectroscopies were used to characterize the resulting composites.The results show that the electrostatic adsorptive forces between the positively charged PANI nanofibers andthe negatively charged MWNTs enable precipitation of MWNT−PANI composites in the mixed aqueouscolloids. This work provides new strategy for fabricating other nanocomposites of carbon nanotubes withconducting polymers.
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