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A New Dithiophene Fused p-Phenylene Vinylene Conducting Polymer. Synthesis and Study

Published online by Cambridge University Press:  16 February 2011

Martin Pomerantz ,
Jiping Wang ,
Seeyearl Seong ,
Kyle P. Starkey ,
Long Nguyen  and
Dennis S. Marynick
Martin Pomerantz
Affiliation:
Center for Advanced Polymer Research, Department of Chemistry and Biochemistry, Box 19065, The University of Texas at Arlington, Arlington, TX 76019–0065
Jiping Wang
Affiliation:
Center for Advanced Polymer Research, Department of Chemistry and Biochemistry, Box 19065, The University of Texas at Arlington, Arlington, TX 76019–0065
Seeyearl Seong
Affiliation:
Center for Advanced Polymer Research, Department of Chemistry and Biochemistry, Box 19065, The University of Texas at Arlington, Arlington, TX 76019–0065
Kyle P. Starkey
Affiliation:
Center for Advanced Polymer Research, Department of Chemistry and Biochemistry, Box 19065, The University of Texas at Arlington, Arlington, TX 76019–0065
Long Nguyen
Affiliation:
Center for Advanced Polymer Research, Department of Chemistry and Biochemistry, Box 19065, The University of Texas at Arlington, Arlington, TX 76019–0065
Dennis S. Marynick
Affiliation:
Center for Advanced Polymer Research, Department of Chemistry and Biochemistry, Box 19065, The University of Texas at Arlington, Arlington, TX 76019–0065
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Abstract

A new conducting polymer, poly (benzo[1,2-b:4,5-b′]dithiophene-4,8-diyl vinylene) (1), has been prepared by pyrolysis of a precursor polymer 2, which, in turn, was prepared by a multistep synthetic sequence (Scheme 1). The polymer has a UV-vis spectral maximum at 501 nm (2.48 eV), band-gap (band edge) of 1.92 eV and with FeC?3 doping a conductivity of 15 S cm1. Quantum Mechanical calculations using PRDDO, ab-initio and modified extended Hiickel Methodology on the Monomers, trimers and polymers, both aromatic and quinoid, provided structures and an absorption maximum band-gap which is consistent with either a planar aromatic polymer or a polymer which has both aromatic and quinoid units.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 328: Symposium Q – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1993 , 227
Copyright
Copyright © Materials Research Society 1994

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References

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