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.
|Number of pages||7|
|Journal||Polymer Engineering and Science|
|Publication status||Published - Feb 1990|
ASJC Scopus subject areas
- Chemical Engineering(all)
- Materials Chemistry
- Polymers and Plastics