Optical, Electrochemical, Magnetic, and Conductive Properties of New Poly(indolocarbazole‐alt‐bithiophene)s

Macromolecular Chemistry and Physics - Tập 207 Số 2 - Trang 175-182 - 2006
Nicolas Blouin1, Mario Leclerc1,2,3, Barbara Vercelli4, Sandro Zecchin4, Gianni Zotti2,4,3
1Canada Research Chair on Electroactive and Photoactive Polymers, Département de Chimie, Université Laval, Quebec City, Qc, Canada G1K 7P4
2Gianni Zotti, Istituto CNR per l' Energetica e le Interfasi, C.o Stati Uniti 4, 35127 Padova, Italy.
3Mario Leclerc, Canada Research Chair on Electroactive and Photoactive Polymers, Département de Chimie, Université Laval, Quebec City, Qc, Canada G1K 7P4.
4Istituto CNR per l’ Energetica e le Interfasi, c.o. Stati Uniti 4, 35127 Padova, Italy

Tóm tắt

AbstractSummary: New alternating copolymers based on indolocarbazole (IC), both two‐ and three‐coupled, and bithiophene (BT) or bis(3,4‐ethylenedioxythiophene) (BiEDOT), were obtained using Stille or Suzuki coupling reactions. Those copolymers have been investigated by cyclic voltammetry, electrochemical quartz crystal microbalance, in situ electron spin resonance, in situ conductivity, and UV‐Vis‐NIR spectroelectrochemistry techniques. All polymer films undergo reversible oxidation processes. One to three isoelectronic oxidation processes, involving one electron per repeat unit, produce radical cations, dications, and radical trications. The oxidative charge is localized in the IC moiety for BT copolymers or over the whole polyconjugated backbone for BiEDOT copolymers. Redox neutral‐polaron conductivities are in the range of 0.02–0.1 S · cm−1 and polaron‐bipolaron conductivities in the range of 0.1–0.7 S · cm−1.Chemical structure of the PIC derivatives.magnified imageChemical structure of the PIC derivatives.

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Macromolecular Chemistry and Physics

Tập 207 Số 2

175-182

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