Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
권호 표지

Synthesis and Characterization of Soluble Polypyrrole with High Conductivity

높은 전기 전도성을 갖는 가용성 폴리피롤 합성 및 특성

  • Hong, Jang-Hoo (Department of Fine Chemistry, Seoul National University of Technology) ;
  • Jang, Kwan-Sik (Department of Fine Chemistry, Seoul National University of Technology)
  • 홍장후 (서울산업대학교 정밀화학과) ;
  • 장관식 (서울산업대학교 정밀화학과)
  • Received : 2007.02.21
  • Accepted : 2007.04.16
  • Published : 2007.06.10
Download PDF
⟨ Previous Next ⟩

Abstract

Highly conducting Polypyrroles soluble in organic solvents were synthesized using functional doping agents, such as mixed dopants [sodium di(2-ethylhexyl)sulfosuccinate (DEHSNa) Naphthalenesulfonic acid (NSA), DEHSNa Toluenesulfonic acid (TSA), DEHSNa Dodecylbenzensulfonic acid (DBSA)] and mixed oxidants [$(NH_4)_2S_2O_8{\cdot}FeCl_3$, $(NH_4)_2S_2O_8{\cdot}Fe_2(SO_4)_3$]. Ppy-DEHS powder using an oxidant, such as $(NH_4)_2S_2O_8$ (10 wt%/vol.) showed higher solubility than the mixed dopant (DEHSNa NSA, 3 wt%/vol.) and mixed oxidant [$(NH_4)_2S_2O_8{\cdot}Fe_2(SO_4)_3$, 4 wt%/vol.] in DMF solvent. But Ppy-DEHS free standing film using a mixed dopant, such as DEHSNa NSA (16 S/cm) and a mixed oxidant, such as $(NH_4)_2S_2O_8{\cdot}Fe_2(SO_4)_3$ (13 S/cm) cast from DMF solvent showed higher electrical conductivity than $(NH_4)_2S_2O_8$ (2 S/cm). For the Ppy-DEHS films using various condition cast from DMF solvent, three dimensional various range hopping model (3D VRH ; $\{{\sigma}_{dc}(T)={\sigma}_oexp[-(T_o/T)^{1/4}]\}$) provided fit to the results of temperature dependence of electrical conductivity measurement.

기능성 도핑제인 혼합 도판트[sodium di(2-ethylhexyl)sulfosuccinate(DEHSNa) Naphthalenesulfonic acid (NSA), DEHSNa Toluensulfonic acid (TSA), DEHSNa Dodecylbenzensulfonic acid (DBSA)], 혼합 산화제[$(NH_4)_2S_2O_8{\cdot}FeCl_3$, $(NH_4)_2S_2O_8{\cdot}Fe_2(SO_4)_3$]을 사용하여 높은 전기전도도를 갖는 유기용매에 가용성인 폴리피롤을 합성하였다. 산화제로 $(NH_4)_2S_2O_8$ (10wt%/vol.)을 사용한 Ppy-DEHS 분말은 혼합 도판트(DEHSNa NSA, 3 wt%/vol.)와 혼합 산화제[$(NH_4)_2S_2O_8{\cdot}Fe_2(SO_4)_3$, 4 wt%/vol.]을 사용한 경우보다 극성 용매(DMF)에서 높은 용해도를 나타내었다. 그러나, DMF 용매에서 제조된 혼합 도판트[DEHSNa NSA, 16 S/cm]와 혼합 산화제[$(NH_4)_2S_2O_8{\cdot}FeCl_3$, 13 S/cm]을 사용한 Ppy-DEHS 필름의 전기전도도는 $(NH_4)_2S_2O_8$ (2 S/cm)을 사용한 경우보다 더 높게 나타났다. 다양한 조건에서 제조된 Ppy-DEHS 필름의 전하전달은 모두 3차원 VRH mode{$\{{\sigma}_{dc}(T)={\sigma}_oexp[-(T_o/T)^{1/4}]\}$에 부합하였다.

Keywords

Acknowledgement

Supported by : 서울산업대학교

References

  1. A. Angeli and L. Alessandri, Gazz. Chim, Ital. 46, 283 (1916)
  2. S. Machida, S. Miyata, and T. Techagumpuch, Synth. Met., 31, 311 (1989) https://doi.org/10.1016/0379-6779(89)90798-4
  3. Y. A. Bubitsky, B. A. Zhubanov, and G. G. Maresch, Synth. Met., 41, 373 (1991) https://doi.org/10.1016/0379-6779(91)91085-O
  4. S. Rapi, V. Bochi, and G. P. Gardini, Synth. Met., 32, 351 (1989) https://doi.org/10.1016/0379-6779(89)90777-7
  5. A. Dall'olio, Y. Dascola, and V. Varaca, Compfes Rendus, C267, 433 (1968)
  6. A. F. Diaz, K. K. Kanazawa, and G. P. Gardini, J. Chem. Soc., 635 (1979)
  7. M. A. Diaz, B. J. Schwartz, M. R. Anderson, and A. J. Heeger, Synth. Met., 84, 455 (1997)
  8. A. J. Nelson, S. Glenis, and A. J. Frank, J. Vac. Sci. Technol. 6, 954 (1987)
  9. D. M. Collard and M. S. Stoakes, Chem. Mater., 6, 850 (1985) https://doi.org/10.1021/cm00042a025
  10. D. Y. Kim, J. Y. Lee, C. Y. Kim, E. T. Kang, and K. L. Tan, Synth. Met., 72, 243 (1995)
  11. J. Y. Lee, and D. Y. Kim, Synth. Met., 74, 103 (1995)
  12. K. T. Song, J. Y. Lee, H. D. Kim, D. Y. Kim, S. Y. Kim, and C. Y. Kim, Synth. Met., 110, 57 (2000) https://doi.org/10.1016/S0379-6779(99)00267-2
  13. J. K. Lee, J. Joo, K. S. Jang, E. J. Oh, and S. G. Song, Saemulli, 38, 6 (1998)
  14. J. S Baeck, K. S. Jang, E. J. Oh, and J. Joo, Phys. Rev. B. 59, 6177 (1999) https://doi.org/10.1103/PhysRevE.59.999
  15. J. Joo, J. K. Lee, E. J. Oh, and A. J. Epstein, Synth. Met., 117, 45 (2001) https://doi.org/10.1016/S0379-6779(00)00537-3
  16. E. J. Oh and K. S. Jang, Synth. Met., 119, 107 (2001) https://doi.org/10.1016/S0379-6779(00)01000-6
  17. K. S. Jang, S. S. Han, J. S. Suh, and E. J. Oh, Synth. Met., 119, 109 (2001) https://doi.org/10.1016/S0379-6779(00)01011-0
  18. E. J. Oh, K. S. Jang, and A. G. Macdiarmid, Synth. Met., 125, 267 (2002) https://doi.org/10.1016/S0379-6779(01)00384-8