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Conductivity and Conducting Mechanism of Polypyrrole via Chemical Oxidative Polymerization

Ren Li, Zhang Xuefeng, Wang Lixin and Zhang Fuqiang

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Abstract: Polypyrrole was synthesized by chemical oxidative polymerization.Its morphology was characterized by SEM and TEM,and its conductivity was measured by a four-probe instrument.Influences on its conductivity and conducting mechanism were studied.It was found that the conductivity and morphology are greatly influenced by the amount of oxidant,reaction temperature and time,and the kind of dopants.The conductivity of polypyrrole doped with BSNa was the highest under the condition of molar tation of FeCl3/Py 1.0,for a reaction time of 0.5h in an ice-bath.It was shown that the polymer chain of the fiber PPy-NSA was identical to that of PPy doped with other sulfonic dopants.The higher conductivity of polypyrrole was due to its doping condition,the narrow gap between the conduction band and valence band,the freer movement of current carriers,and the doping-undoping of anions.

Key words: polypyrrolechemical oxidative polymerizationconductivityconducting propertyconducting mechanismdopant

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    Received: 18 August 2015 Revised: 02 April 2007 Online: Published: 01 September 2007

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      Ren Li, Zhang Xuefeng, Wang Lixin, Zhang Fuqiang. Conductivity and Conducting Mechanism of Polypyrrole via Chemical Oxidative Polymerization[J]. Journal of Semiconductors, 2007, In Press. Ren L, Zhang X F, Wang L X, Zhang F Q. Conductivity and Conducting Mechanism of Polypyrrole via Chemical Oxidative Polymerization[J]. Chin. J. Semicond., 2007, 28(9): 1396.Export: BibTex EndNote
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      Ren Li, Zhang Xuefeng, Wang Lixin, Zhang Fuqiang. Conductivity and Conducting Mechanism of Polypyrrole via Chemical Oxidative Polymerization[J]. Journal of Semiconductors, 2007, In Press.

      Ren L, Zhang X F, Wang L X, Zhang F Q. Conductivity and Conducting Mechanism of Polypyrrole via Chemical Oxidative Polymerization[J]. Chin. J. Semicond., 2007, 28(9): 1396.
      Export: BibTex EndNote

      Conductivity and Conducting Mechanism of Polypyrrole via Chemical Oxidative Polymerization

      • Received Date: 2015-08-18
      • Accepted Date: 2007-02-06
      • Revised Date: 2007-04-02
      • Published Date: 2007-08-31

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