Structural investigation of lignosulfonate doped polyaniline

Lignosulfonate doped polyaniline (LGS-PANI) was prepared in the presence of sulfamic acid as a novel conducting filler. The room temperature conductivity of LGS-PANI increases more than two-fold with LGS at a mass fraction of 11.4wt% and these conductivities (0.73–5.00S/cm) exceed the highest report...

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Bibliographic Details
Published in:Synthetic metals 2009-09, Vol.159 (17-18), p.1761-1766
Main Authors: Shao, L., Qiu, J.H., Feng, H.X., Liu, M.Z., Zhang, G.H., An, J.B., Gao, C.M., Liu, H.L.
Format: Article
Language:English
Subjects:
Applied sciences
Conductivity
Exact sciences and technology
Lignosulfonate
Organic polymers
Physicochemistry of polymers
Polyaniline
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Stability
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Summary:Lignosulfonate doped polyaniline (LGS-PANI) was prepared in the presence of sulfamic acid as a novel conducting filler. The room temperature conductivity of LGS-PANI increases more than two-fold with LGS at a mass fraction of 11.4wt% and these conductivities (0.73–5.00S/cm) exceed the highest reported for polymer acid-doped PANI systems. The conductivity stability and thermal stability are clearly improved at a certain content of LGS in LGS-PANI. These trends are accompanied by significant structural changes as evidenced by X-ray diffraction studies. The material characterization was also carried out by Fourier transform IR spectroscopy, thermogravimetric analysis and scanning electron microscopy.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2009.05.022