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Phthalonitrile resin bearing cyanate ester groups: synthesis and characterization

机译：含有氰酸酯的酞菁树脂：合成和表征

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摘要

Novolac resins bearing both cyanate and phthalonitrile groups in different proportions in the same backbone were synthesized and characterized. The resin was thermally cured to a network. Differential scanning calorimetric studies showed that cyanate and phthalonitrile groups underwent independent curing reactions. No evidence was obtained for co-curing of the two groups. Polymerization of cyanate groups preceded that of phthalonitrile groups and the former reaction was susceptible for catalysis. Incorporation of cyanate groups facilitated an early gelation of the resin and thus, the processability of the resin. However, this impaired marginally the moisture resistance and thermal stability of the otherwise inherently water resistant and thermally stable phthalonitrile resins.
机译：合成并表征携带在同一骨架中不同比例的氰酸酯和邻苯二甲腈基团的酚醛清漆树脂。 将树脂热固化到网络。 差分扫描量热研究表明，氰酸酯和酞泊硝基群正在接受独立的固化反应。 没有获得两组共同固化的证据。 氰酸酯基团的聚合在于酞氯腈基团，前反应易于催化。 氰酸酯基团的掺入促进了树脂的早期凝胶化，因此是树脂的加工性。 然而，这略有损害了另一种固有的防水和热稳定的酞硫脲树脂的耐湿性和热稳定性。

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  • 来源
    《RSC Advances》 |2015年第111期|共8页
  • 作者

    Dhanya Augustine; Dona Mathew; C. P. Reghunadhan Nair;

  • 作者单位

    Polymers and Special Chemicals Group Vikram Sarabhai Space Centre Trivandrum - 695022 Kerala India.;

    Polymers and Special Chemicals Group Vikram Sarabhai Space Centre Trivandrum - 695022 Kerala India.;

    Polymers and Special Chemicals Group Vikram Sarabhai Space Centre Trivandrum - 695022 Kerala India.;

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  • 正文语种 eng
  • 中图分类 化学;
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