Journal of the Korean Electrochemical Society (전기화학회지)

The Korean Electrochemical Society (한국전기화학회)
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Characterization of DBSA and Mixed Dopant Doped Stretchable Polypyrrole Films by Electrochemical Method

전기화학적 방법에 의한 DBSA와 혼합도판트로 도핑된 연신성 폴리피롤 필름의 특성

  • Jang, Kwan-Sik (Department of Chemistry, Sogang University) ;
  • Moon, Bong-Jin (Department of Chemistry, Sogang University) ;
  • Oh, Eung-Ju (Department of Chemistry, Myongji University) ;
  • Hong, Jang-Hoo (Department of Fine Chemistry, Seoul National University of Technology)
  • Published : 2003.05.01
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Abstract

Stretchable Polypyrrole films(Ppy-DBSA, Ppy-mixed dopants) using functionalized doping agents dodecyl-benzensulfonic acid (DBSA) and mixed dopants{DBSA with $LIClO_4$, NSA (2-naphthalenesulfonic acid), DEHSA [di(2-ethylhexyl)sulfosuccinic acid]}, were synthesized by electrochemical method. Electrochemically prepared Polypyrrole films were stretch-oriented $(L/L_0=1.0-2.5)$ by a Bone drawing method and their electrical conductivities were measured. As the drawing ratio was increased, the electrical conductivities were increased. This results might be due to the increase in crystallinity through the incresase in draw ratio. The results of temperature dependence of electrical conductivity showed that power raw $(L/L_0=1.0-2.5)$ gave the best fit to the data for stretched Ppy-DBSA and Ppy-mixed dopants films.

기능성 도판트인 dodecylbenzensulfonic acid(DBSA)와 혼합도판트{(DBSA와 $LiClO_4$, NSA(2-naphthalenesulfonic acid), DEHSA[di(2-ethylhexyl)sulfosuccinic acid]}를 사용하여 전기화학적방법에 의한 연신성 폴리피롤(Ppy-DBSA, Ppy-mixed dopants)필름을 제조하였다. 전기화학적 방법에 의해 제조된 폴리피를 괼름은 zone drawing방법을 사용하여 1.0-2.5배 연신시킬 수 있었으며, 연신된 폴리피롤 필름의 전기전도도를 측정하였다. 연신율이 증가함에 따라 필름의 전기전도도가 증가함을 볼 수 있었다. 이 현상은 연신율에 따른 결정성 증가로 설명 할 수 있었다. 1.0-2.5배 연신된 폴리피를 필름(Ppy-DBSA, Ppy-mixed dopants)을 온도변화에 따른 전하 이동 경로는 모두 power raw에 적합함을 볼 수 있었다.

Keywords

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