PBI (Polybenzimidazole): Synthesis, Properties and Applications

  title={PBI (Polybenzimidazole): Synthesis, Properties and Applications},
  author={Robert B. Sandor},
  journal={High Performance Polymers},
  pages={25 - 37}
  • R. Sandor
  • Published 1 February 1990
  • Materials Science
  • High Performance Polymers
PBI (polybenzimidazole) is a thermally stable high performace polymer. In a variety of forms, e.g. fibers, neat resin and composites, PBI finds use in a wide range of high temperature applications. The synthesis of PBI, and properties, and applications of fiber and molded resin are discussed. Also included are recent developments in composite fabrication technology and PBI composite applications in carbonlcarbon composites. 
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Thermoacoustic performance of thin freestanding sheets of carbonized poly(acrylonitrile) and polybenzimidazole nanofibers are studied as promising candidates for thermophones and applications of thermoac acoustic projectors for loudspeakers, high power SONAR arrays, and sound cancellation are discussed.
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Aromatic polybenzimidazoles were synthesized by H. Vogel and C. S. Marvel in 1961 with anticipation, later justified, that the polymers would have exceptional thermal and oxidative stability.
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