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Stabilizer-free polyaniline nanofiber aqueous colloids were obtained by the direct dispersing of polyaniline nanofiber prepared in the presence of β-cyclodextrin. The polyaniline nanofiber, the diameters of which are between 80 and 100 nm, can be steadily dispersed in near neuter (pH=6.5) aqueous solution for about 60 days without any steric or electrostatic stabilizer.
Using sodium chlorite (NaClO 2 ) as an oxidant, a fibrillar polyaniline with diameters of 50–60 nm was prepared. It was characterized via Fourier-transform infrared spectra (FTIR), UV/vis absorption spectra, wide-angle X-ray diffraction (WXRD) and transmission electron microscopy (TEM), as well as conductivity. Our synthesis approach was very easy and inexpensive. The process of polymerization...
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