Influence of acetone on nanostructure and electrochemical properties of interfacial synthesized polyaniline nanofibers

The growth of polyaniline(PANI) nano fi bers through interfacial polymerization can be well controlled by adding a small amount of acetone in the water/chloroform system. It was found that the polymerization rate became slower in the presence of acetone, yielding PANI nano fi bers with larger aspect...

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Bibliographic Details
Published in:Progress in natural science 2015-08, Vol.25 (4), p.316-322
Main Authors: Zhao, Jianyun, Qin, Zongyi, Li, Tao, Li, Zhuozhan, Zhou, Zhe, Zhu, Meifang
Format: Article
Language:English
Subjects:
Acetone addition
Electrochemical behavior
Interfacial polymerization
Microstructure
nanofiber
Interfacial
Polyaniline
Polyaniline nanofiber
polymerization
A
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Summary:The growth of polyaniline(PANI) nano fi bers through interfacial polymerization can be well controlled by adding a small amount of acetone in the water/chloroform system. It was found that the polymerization rate became slower in the presence of acetone, yielding PANI nano fi bers with larger aspect ratios. The in fl uences of the acetone addition on the morphology, microstructure and properties of as-prepared PANI nano fi bers were studied by scanning electron microscope(FE-SEM), ultraviolet–visible spectra(UV–vis), Fourier transform infrared(FT-IR) and Raman spectroscopy, X-ray diffraction(XRD), thermogravity analysis(TGA), and electrical and electrochemical measurements. The experimental results showed that PANI nano fi bers prepared by using ammonium persulfate(APS) as an oxidant with acetone exhibited slower growth, the larger ratio of length to diameter, and higher crystallinity(2θ=6℃, 19℃, 26℃) than that without acetone, meanwhile remained larger yield of 11.23% and higher conductivity 1.8*10-2S/cm compared with that obtained by replacing APS with Fe Cl3. More importantly, these PANI nano fi bers exhibited better electrochemical behaviors, which bene fi tted from their high crystallinity and good conductivity.
ISSN:1002-0071
DOI:10.1016/j.pnsc.2015.07.003