Optical, Electrochemical, Magnetic, and Conductive Properties of New Polyindolocarbazoles and Polydiindolocarbazoles

Macromolecular Chemistry and Physics - Tập 207 Số 2 - Trang 166-174 - 2006
Nicolas Blouin1, A. Michaud1, Salem Wakim1, Pierre‐Luc T. Boudreault1, 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 polyindolocarbazoles (PIC) and polydiindolocarbazoles (PDIC) have been synthesized using Yamamoto polymerization reaction. These polymers have been investigated by cyclic voltammetry, UV‐Vis‐NIR spectroelectrochemistry, electrochemical quartz crystal microbalance, in situ electron spin resonance, and in situ conductivity techniques. Two redox oxidation processes, each involving one electron per repeat unit, produce radical cations (free or π‐dimerized) and dications. Each one‐electron redox process is generally split into two due to the stabilization of mixed‐valence states. The oxidative charge is delocalized over the polyconjugated backbone with neutral‐polaron conductivities in the range 0.002–0.04 S · cm−1 and polaron‐bipolaron conductivities in the range 0.04–0.5 S · cm−1. Conductivities are higher when nitrogen atoms are involved in the conjugation pathway.Structure of P3IC, P3DIC, P2IC, and P2DIC.magnified imageStructure of P3IC, P3DIC, P2IC, and P2DIC.

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Thông tin xuất bản

Macromolecular Chemistry and Physics

Tập 207 Số 2

166-174

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