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Electrical Conduction Mechanism of Polypyrrole-Alginate Polymer Films
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  • Electrical Conduction Mechanism of Polypyrrole-Alginate Polymer Films
  • Electrical Conduction Mechanism of Polypyrrole-Alginate Polymer Films
저자명
Basavaraja. C.,Jo. Eun-Ae,Kim. Bong-Seong,Kim. Dae-Gun,Huh. Do-Sung
간행물명
Macromolecular research
권/호정보
2010년|18권 11호|pp.1037-1044 (8 pages)
발행정보
한국고분자학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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The polypyrrole (PPy) - alginate (Ag) blend films were synthesized using different wt% of Ag and characterized by Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible (UV-vis) spectroscopy. The morphology was examined by transmission electron microscopy (TEM). The electrical conductivity was determined by studying the I-V characteristics at temperatures ranging from 300-500 K. The results are shown by measuring the dependence of the current on the field, temperature, and blending compositions in the form of the I-V characteristics, and the analysis was made by interpretation of the Poole-Frenkel, Schottky ln (J) vs. T plots. For individual polymers, the conduction mechanism was observed to be a Poole-Frenkel type. After the polymer blend was formed, charge conduction appeared to be the Poole-Frenkel mechanism at both lower and higher temperatures. These results suggest that the Pool-Frenkel mechanism is mainly responsible for the observed conduction. The conductivity of the films increased with increasing alginate wt% in the blend and the mobility of the charge carriers increased with increasing alginate wt% concentration in the blend.