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Synthesis and characterization of soluble and thermally stable triphenylpyridine-containing aromatic polyimides

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Abstract

A new triphenylpyridine-containing aromatic diamine monomer named 4-phenyl-2,6-bis(4-aminophenyl) pyridine was successfully synthesized. A series of polyimides (PIs) with triphenylpyridine moieties were prepared from the newly synthesized diamine monomer via a one-step polymerization with oxydiphthalicanhydride. All the PIs were amorphous and showed excellent solubility in many polar aprotic solvents at room temperature and most of them could afford flexible, transparent, and tough films with good mechanical properties. All the PIs had useful levels of thermal stability associated with high glass-transition temperatures (299–341 °C), 10 % weight-loss temperatures in excess of 537 °C, and char yields at 800 °C in nitrogen higher than 54.9 %.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 51173115), the Ministry of Education (the Foundation for Ph.D. training, Grant No. 20110181110030) of China.

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Authors and Affiliations

  1. State Key Laboratory of Polymer Materials Engineering of China, College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China

    Zhen Sun, Shiming Gong, Heng Zhang, Qing Gong, Lulu Liu & Yinghan Wang

  2. Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao, 266042, China

    Yao Gu

Authors
  1. Yao Gu
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  2. Zhen Sun
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  3. Shiming Gong
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  4. Heng Zhang
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  5. Qing Gong
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  6. Lulu Liu
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  7. Yinghan Wang
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Correspondence to Yinghan Wang.

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Gu, Y., Sun, Z., Gong, S. et al. Synthesis and characterization of soluble and thermally stable triphenylpyridine-containing aromatic polyimides. J Mater Sci 50, 6552–6558 (2015). https://doi.org/10.1007/s10853-015-9186-7

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  • DOI: https://doi.org/10.1007/s10853-015-9186-7

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