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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 11, Number 5
BKCSDE 11(5)
May 20, 1990 

 
Title
Conduction Mechanism for PAP and Comparison of Physical Properties of PAP with other Polyaniline-based Conducting Polymers
Author
Kyung Moon Choi, Eun Ju Lee, Keu Hong Kim*
Keywords
Abstract
Polyaniline perchlorate (PAP) was synthesized by the chemical oxidation of aniline using ferric perchlorate as a strong oxidant. The electrical conductivity of PAP was measured at temperatures from - 170 to 25℃. It is suggested from the conductivity measurements that the conduction mechanism for PAP is a polaron hopping conduction. From the dependence of resistivity on the reciprocal temperature, the activation energy was computed to be 0.072 eV. From the comparison of the ESR parameterks and conductivity at 25℃ for the polyaniline-based conducting polymers, the conductivities of PAP, PATFB and PATS increase with increasing ΔHpp, decreasing A/B ratio and decreasing g-value, respectively. It is shown by TGA results for PAP, PATFB and PATS that the maximum weight loss rates (Pr) are 0.185 (at 269℃ ), 0.366 (at 324℃) and 0.23 mg/min (at 338℃), respectively.
Page
371 - 376
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