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Poly(Binaphthalenevinylene-alt-Phenylenevinylene) Derivatives: Novel Luminescent Polymers for Light-Emitting Devices

Published online by Cambridge University Press:  21 March 2011

Lixin Zheng
Affiliation:
Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, ajen@u.washington.edu.
Xuezhong Jiang
Affiliation:
Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, ajen@u.washington.edu.
Michelle S. Liu
Affiliation:
Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, ajen@u.washington.edu.
Alex K-Y. Jen
Affiliation:
Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, ajen@u.washington.edu.
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Abstract

Novel conjugated light-emitting polymers were synthesized via a Wittig-Horner condensation reaction between a binaphthyl dicarbaldehyde and a series of electron-rich or electron-deficient aryl diphosphonates. After comparing these materials with the model compound, 4c, it was revealed that the introduction of a twisted, non-coplanar binaphthyl structure provided an effective approach for tailoring the spectral characteristics of the polymers and improving their solubility and thermal stability (glass transition temperature, Tg, 200°C). Furthermore, the band structures of the polymers could be fine-tuned by changing the electronic properties of the bridging aromatic units. The electroluninescence (EL) and device characteristics were also reported in this paper.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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