Liquid crystal polymer-carbon fiber composites. Molecular orientation

Satya Bhama, Samuel I Stupp

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The objective of this work has been to study composite systems in which carbon fibers are dispersed in a liquid crystal polymer matrix. The fundamental point of interest here has been the interfacial response that fiber surfaces can potentially induce in self-ordering polymers. The matrix material used was a thermotropic liquid crystal polyester synthesized in the author laboratory from the monomers pacetoxybenzoic acid, diacetoxyhydroquinone, and pimelic acid. The aromatic-aliphatic polymer was characterized by NMR as a chemically disordered polymer of the three structural units which exhibits a nematic phase at temperatures above 150°C. Fiber surfaces were also found to stabilize nematic ordering of the polymer as the melt was heated towards complete isotropization.

Original languageEnglish
Pages (from-to)228-234
Number of pages7
JournalPolymer Engineering and Science
Issue number4
Publication statusPublished - Feb 1990


ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Chemistry
  • Polymers and Plastics

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