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Conjugated poly(EDOT-ethynylene-fluorene) with TTF as pendants

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Abstract

A kind of π-conjugated poly(EDOT-ethynylene-arylene)s P1–P5 were synthesized by Sonogashira coupling reaction between DBEDOT and five arylenes substituted with ethynyl groups. Among them, P5 was a polymer with TTF as pendants. Their TGA results exhibited their good thermal stability and their electrochemical and spectroscopic properties were investigated by CV, UV–Vis, and FL. The results indicated that there were intramolecular interactions between TTF group and polymer backbone as well as between the EDOT and arylene moieties. After doping with TCNQ, P5 could form stable CT-complex with a conductivity of 1.3 × 10−3 S cm−1, while its conductivity could be up to 3.5 × 10−2 S cm−1 after doping with I2, due to its increased conductive dimensions. Such results indicated that this polymer had potential application in developing conducting materials.

Graphical Abstract

A kind of π-conjugated EDOT-ethynylene-fluorene polymer with TTF as pendants was synthesized, which exhibited good solubility and thermal stability. When doping with I2, its conductivity was improved significantly due to its increased conductive dimensions.

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Acknowledgments

This study was supported by National Natural Science Foundation of China (No. 21076078 and 20872035).

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Authors and Affiliations

  1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai, 200237, People’s Republic of China

    Lei Zhang, Chengyun Wang & Yongjia Shen

  2. Key Lab of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, People’s Republic of China

    Meijiang Li & Guoqiao Lai

Authors
  1. Lei Zhang
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  2. Meijiang Li
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  3. Chengyun Wang
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  4. Guoqiao Lai
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  5. Yongjia Shen
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Correspondence to Yongjia Shen.

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Zhang, L., Li, M., Wang, C. et al. Conjugated poly(EDOT-ethynylene-fluorene) with TTF as pendants. Polym. Bull. 70, 353–369 (2013). https://doi.org/10.1007/s00289-012-0841-8

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  • DOI: https://doi.org/10.1007/s00289-012-0841-8

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