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Synthesis, characterization and self-promoted cure behaviors of a new phthalonitrile derivative 4-(4-(3, 5-diaminobenzoyl) phenoxy) phthalonitrile

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Abstract

A new amino-containing phthalonitrile derivative 4-(4-(3, 5-diaminobenzoyl) phenoxy) phthalonitrile (DAPN) was successfully synthesized. Its structure was identified by FT-IR and 1H-NMR. DAPN can be thermally polymerized by duration at 230 °C for various times under a nitrogen atmosphere, even in the absence of curing additives. The thermal properties of the cured products were characterized by TGA and DSC. The 5 and 10% weight loss temperatures ranged from 442 to 446 and 504 to 505 °C, respectively. Char yields (800 °C) were in the range of 72.7–72.9%. DSC data showed that the melting peak of the cured products disappeared due to their thermal polymerization. The insolubility in concentrated sulfuric acid and FT-IR of the cured products indicated the formation of cross-linked networks.

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Acknowledgments

The authors would like to express their special appreciation to Sichuan Santai Gurui Enterprise Co. Ltd. (China) for the provision of FT-IR, DSC and TGA facilities and are also grateful to Mr. Zhifu Huang (Sichuan Santai Gurui Enterprise Co. Ltd., China) for his helpful assistance in FT-IR, DSC and TGA tests.

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Authors and Affiliations

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

    Shaohong Zhou, Haibing Hong, Ke Zeng, Peikai Miao, Hongfei Zhou, Yipeng Wang, Tao Liu, Chune Zhao, Guoliang Xu & Gang Yang

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  1. Shaohong Zhou
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  2. Haibing Hong
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  3. Ke Zeng
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  4. Peikai Miao
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  5. Hongfei Zhou
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  7. Tao Liu
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  8. Chune Zhao
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  9. Guoliang Xu
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  10. Gang Yang
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Correspondence to Gang Yang.

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Zhou, S., Hong, H., Zeng, K. et al. Synthesis, characterization and self-promoted cure behaviors of a new phthalonitrile derivative 4-(4-(3, 5-diaminobenzoyl) phenoxy) phthalonitrile. Polym. Bull. 62, 581–591 (2009). https://doi.org/10.1007/s00289-009-0041-3

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  • DOI: https://doi.org/10.1007/s00289-009-0041-3

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