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Synthesis and characterization of red-emission PPV copolymers containing fluorenone unit

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Abstract

Two soluble copolymers of fluorenone and dioctoxylbenzene (PFN) or anthracene (PFNAn) were synthesized through Heck polymerization, and were characterized by gel permeation chromatography (GPC), FT-IR, 1H-NMR, elemental analysis and thermogravimetric analysis. The polymers possess good solubility in common organic solvents and high thermal stability with the onset decomposition temperature at higher than 410 °C. The photophysical properties of the polymers were investigated in both solutions and spin-coated films. Cyclic voltammetry results revealed that the copolymers possess higher electron affinity and reversible reduction/re-oxidation processes. Their electroluminescent properties were further investigated. PFN and PFNAn show stable and saturated red light emission with high thermal stability and high electron injection ability. This type of conjugated polymers may be promising for the applications as electron acceptors in polymer photovoltaic cells and electron transporting materials.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China

    Ying-** Zou  (邹应萍), Chun-yue Pan  (潘春跃), Zhen-hua Zhang  (张振华) & Bo Liu  (刘波)

  2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China

    Yue-hui He  (贺跃辉) & Ke-chao Zhou  (周科朝)

  3. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Bei**g, 100190, China

    Yi Zhou  (周祎) & Yong-fang Li  (**永舫)

Authors
  1. Ying-** Zou  (邹应萍)
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  2. Chun-yue Pan  (潘春跃)
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  3. Zhen-hua Zhang  (张振华)
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  6. Ke-chao Zhou  (周科朝)
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  7. Yi Zhou  (周祎)
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  8. Yong-fang Li  (**永舫)
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Correspondence to Ying-** Zou  (邹应萍).

Additional information

Foundation item: Projects(50803074, 50633050) supported by the National Natural Science Foundation of China; Project supported by the Opening Fund of State Key Laboratory of Powder Metallurgy and Start-up Fund of Central South University, China

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Zou, Yp., Pan, Cy., Zhang, Zh. et al. Synthesis and characterization of red-emission PPV copolymers containing fluorenone unit. J. Cent. South Univ. Technol. 17, 269–276 (2010). https://doi.org/10.1007/s11771-010-0041-3

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  • DOI: https://doi.org/10.1007/s11771-010-0041-3

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