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Polymers 2015, 7(9), 1599-1616; doi:10.3390/polym7091473

Polyaniline-Doped Spherical Polyelectrolyte Brush Nanocomposites with Enhanced Electrical Conductivity, Thermal Stability, and Solubility Property

School of Printing and Packaging Engineering, Shanghai Publishing and Printing College, Shanghai, 200093, China
Academic Editor: Frank Wiesbrock
Received: 11 July 2015 / Accepted: 19 August 2015 / Published: 2 September 2015
View Full-Text   |   Download PDF [3660 KB, uploaded 2 September 2015]   |  

Abstract

The synthesis procedure and dopant are crucial to the electrical conductivity, thermal stability, and solubility properties of polyaniline (PANI). In this paper, high-performance PANI was synthesized by means of chemical oxidative polymerization using anionic spherical polyelectrolyte brushes (ASPB) as dopant. The bonding structure, crystallographic structure, morphology, and thermal stability of the conductive nanocomposite were analyzed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermo-gravimetric analysis (TGA) respectively. Meanwhile, investigation on the electrical conductivity suggested that the room-temperature electrical conductivity of PANI doped with ASPB (PANI/ASPB) was 19.3 S/cm, which was higher than that of PANI (7.0 S/cm), PANI doped with poly(sodium-p-styrenesulfonate) (PSS) (PANI/PSS) (14.6 S/cm), PANI doped with SiO2 (PANI/SiO2) (18.2 S/cm), and PANI doped with canonic spherical polyelectrolyte brushes (CSPB) (PANI/CSPB) (8.0 S/cm). Meanwhile, the addition of ASPB improved the thermal stability and solubility properties of PANI. ASPB played the role of template. Conductive mechanism of PANI/ASPB nanocomposite can be explained by the theoretical models of three-dimensional variable range-hopping (3D VRH). View Full-Text
Keywords: nanocomposite; polyaniline; anionic spherical polyelectrolyte brushes; dopant; template; electrical conductivity; three-dimensional variable range hopping (3D VRH) nanocomposite; polyaniline; anionic spherical polyelectrolyte brushes; dopant; template; electrical conductivity; three-dimensional variable range hopping (3D VRH)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Su, N. Polyaniline-Doped Spherical Polyelectrolyte Brush Nanocomposites with Enhanced Electrical Conductivity, Thermal Stability, and Solubility Property. Polymers 2015, 7, 1599-1616.

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