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Conjugated polymers exhibiting liquid crystallinity

Authors

  • Prof. Luping Yu,

    Corresponding author
    1. Department of Chemistry, The University of Chicago 5735 S. Ellis Avenue, Chicago, IL 60637 (USA)
    • Department of Chemistry, The University of Chicago 5735 S. Ellis Avenue, Chicago, IL 60637 (USA)
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  • Zhenan Bao

    1. Department of Chemistry, The University of Chicago 5735 S. Ellis Avenue, Chicago, IL 60637 (USA)
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  • This work was supported by the ffice of Naval Research grant N00014-93-1-0092 and by the NSF. We thank Dr. Rubingh Cai for assistance in polarized microscopic studies.

Abstract

Various solubel and fusible liquid crystalline conjugated polymers can be synthesized due to recent progress in the use of the Stille coupling reaction and the Heck reaction. Evidence of nematic liquid-crystalline phases in these polymers–arising from the rigid-rod nature of the conjugated polymer backbone—is provided, and it is demonstrated that properties such as Tm, Tc, the solubility and the fusibility can becontrolled by changing the side groups.

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