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Preparation of Conductive PEDOT-PSMA Hybrid Thin Films Using Simultaneous Co-vaporized Vapor Phase Polymerization

동시-공증발 기상 중합을 이용한 전도성 PEDOT-PSMA 박막 제조

  • Nodora, Kerguelen Mae (Division of Advanced Material Engineering, Kongju National University) ;
  • Yim, Jin-Heong (Division of Advanced Material Engineering, Kongju National University)
  • ;
  • 임진형 (공주대학교 신소재공학부)
  • Received : 2018.03.31
  • Accepted : 2018.04.17
  • Published : 2018.06.10

Abstract

A new approach for the fabrication of organic-organic conducting composite thin films using simultaneous co-vaporization vapor phase polymerization (SC-VPP) of two or more monomers that have different polymerization mechanisms (i.e., oxidation-coupling polymerization and radical polymerization) was reported for the first time. In this study, a PEDOT-PSMA composite thin film consisting of poly(3,4-ethylenedioxythiophene)(PEDOT) and poly(styrene-co-maleic anhydride)(PSMA) was prepared by SC-VPP process. The preparation of organic-organic conductive composite thin films was confirmed through FT-IR and $^1H-NMR$ analyses. The surface morphology analysis showed that the surface of PEDOT-PSMA thin film was rougher than that of PEDOT thin film. Therefore, PEDOT-PSMA exhibited lower electrical conductivity than that of PEDOT. But the conductivity can be improved by adding 2-ethyl-4-methyl imidazole as a weak base. The contact angle of PEDOT-PSMA was about $50^{\circ}$, as compared to $62^{\circ}$ for PEDOT. The demonstrated methodology for preparing an organic-organic conductive hybrid thin film is expected to be useful for adjusting intrinsic conductive polymer (ICP)'s surface properties such as mechanical, optical, and roughness properties.

Acknowledgement

Supported by : 한국연구재단

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