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Synthesis and characterization of self-catalyzed imide-containing pthalonitrile resins

Authors

  • Badshah Amir,

    1. Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
    2. Laboratory of Advanced Polymer Materials, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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  • Heng Zhou,

    1. Laboratory of Advanced Polymer Materials, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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  • Feng Liu,

    1. Laboratory of Advanced Polymer Materials, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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  • Hasan Aurangzeb

    Corresponding author
    1. Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
    • Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
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Abstract

Some new amino- and imide-containing phthalonitrile compounds with 1:1 molar ratio of amino group to pthalonitrile unit were successfully synthesized. The molecular structures were characterized by spectroscopic techniques. They were thermally polymerized under nitrogen/air, even in the absence of curing additives. The thermal properties of the cured products were characterized by thermogravimetric analysis and differential scanning calorimetry. The 5% weight loss temperatures ranged from 525 to 528 °C and 513 to 520 °C under nitrogen and air, respectively. Char yields (900 °C) were in the range of 62–70%. Rheometric measurements showed that the rate of the cure reaction differs for all the three monomers. The glass transition temperature advances with increasing extent of cure and disappears on postcure at 375 °C. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010

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