• Title/Summary/Keyword: Electrochemcial polymerization

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Synthesis of Electroactive Polythiophene Derivatives and Its Application for Biointerface (I) (전기적 활성을 갖는 폴리티오펜 유도체들의 합성과 생체계면에의 응용 (I))

  • 정선형;배진영;김지흥;정동준
    • Polymer(Korea)
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    • v.26 no.1
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    • pp.28-36
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    • 2002
  • In this study, we synthesized novel thiophene derivatives by the protection of the carboxyl group of 3-thiophene acetic acid with differently substituted benzyl groups. While 3-thiophene acetic acid is not electro-polymerizable, the modified monomers can be easily electro-oxidized to form stable electroactive polymers. The protecting groups can be easily removed in the solid state and the desired reactive carboxyl group can be introduced on the polymer surface. SEM observations show that obtained polymer films show a very good film surface and homogeneous morphology on the Pt electrode. After introduction of macromonomer, FT-IR spectrum shows new absorption bands at 1650 and $1550 cm^{-1}$, which is consistent with the formation of an amide bond. Electroactivity measurements were examined by cyclic voltammogram(CV). These polymers showed the characteristic electrochemical behavior of poly(3-alkylthiophene)s with reversible redox transition in the range of 0.7-0.9 V.