Lee, J.Y. Kim, D.Y. Song, K.T. Kim, S.Y. Kim, C.Y. 2024-01-21T20:14:40Z 2024-01-21T20:14:40Z 2021-09-02 1996-01 1058-725X https://pubs.kist.re.kr/handle/201004/144875 Polypyrrole(PPy) soluble in chloroform and m-cresol was chemically synthesized by using ammonium persulfate as an oxidant and dodecylbenzene sulfonic acid as a dopant source. Electrical conductivity of resulting PPy becomes higher when polymerized with higher concentration of the oxidant and at lower polymerization temperature. The surface of PPy film cast from the solution is so smooth to give little scattering but total reflection and the film shows electrical conductivity of 4.5 S/cm. PPy solution in chloroform shows much greater absorption in the free carrier-tail region than that in m-cresol does, indicating that chloroform is a better solvent. The cast film sustains the cyclic redox reactivity for more than 100 cycles in the system of tetrabutylammonium dodecylsulfate in acetonitrile. English Taylor and Francis Inc. A polypyrrole solution in chloroform Article 10.1080/10587259608040322 1 Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, v.280, pp.135 - 144 Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals 280 135 144 N scopus 2-s2.0-0343712333 Article Absorption Acetonitrile Ammonium compounds Conductive materials Electric conductivity Polymerization Redox reactions Solvents Synthesis (chemical) Ammonium persulfate Chloroform Dodecylbenzene sulfonic acid Polypyrrole Aromatic polymers polypyrrole solution