Thermal behaviour of ethynyl and ethenyl terminated imide resins

  • S. Alam
  • I. K. Varma
Regular Papers


A series of ethynyl and ethenyl end-capped imide resins were synthesised by the reaction of 9,9-bis(4-aminophenyl) fluorene (BAF) with pyromellitic dianhydride (PMDA)3/3′, 4,4′-benzophenone tetracarboxylic acid dianhydride (BTDA)/2,2-bis(3,4-dicarboxy phenyl) hexafluoropropane dianhydride (6F) and 3-ethynyl aniline/maleic anhydride. Structural characterisation was done by infra red and elemental analysis. Thermal characterisation was done by differential scanning calorimetry and thermogravimetric analysis. The decomposition temperatures of cured resins were above 200°C in nitrogen atmosphere. Char yield at 800°C ranged from 59–65.5%.


bis maleimide char yield curing ethynyl terminated imide 


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Copyright information

© Akadémiai Kiadó 1998

Authors and Affiliations

  • S. Alam
    • 2
  • I. K. Varma
    • 1
  1. 1.Centre for Polymer Science and EngineeringIndian Institute of Technology, Delhi, Hauz KhasNew Delhi
  2. 2.Defence Materials & Stores Research & Development EsttKanpurIndia

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