Fibers and Polymers

The Korean Fiber Society (한국섬유공학회)
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Aging Studies on Conducting Polypyrrole

  • Kaynak, Akif (School of Engineering and Technology, Deakin University)
  • Published : 2001.12.01
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Abstract

Change of tensile properties, electrical conductivity and microwave shielding of electrochemically synthesized polypyrrole films with time are presented. Highly doped films had good electrical stability, retaining high microwave reflectivity throughout the aging period. Lightly doped films were less stable and partially reflective and absorptive of microwaves. FT-IR spectral observations revealed a progressive increase in intensity of an unsaturated conjugated carbonyl peak, which was not observed in the highly doped films, suggesting that the concentration of the dopant had an influence on mechanism of degradation of conductivity.

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