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Poly(3′,4′-Dibutyl-α-Terthiophene-Phenylene-Vinylene), and Poly(3′,4′-Dibutyla-α-Terthiophene-Phenylene-Imine): Synthesis and Properties of Two New Isoelectronic Soluble Conjugated Polymers.

Published online by Cambridge University Press:  10 February 2011

Chenggang Wang ,
Xusheng Xie ,
Eugene LeGoff  and
Mercouri G. Kanatzidis
Chenggang Wang
Affiliation:
Department of Chemistry and the Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824.
Xusheng Xie
Affiliation:
Department of Chemistry and the Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824.
Eugene LeGoff
Affiliation:
Department of Chemistry and the Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824.
Mercouri G. Kanatzidis
Affiliation:
Department of Chemistry and the Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824.
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Abstract

A new soluble and dopable copolymer consisting of 3‘,4‘-dibutyl-2,2‘:5‘,2”-terthiophene and phenylene vinylene units has been designed and prepared via a Wittig reaction. This copolymer is soluble in common organic solvents such as THF and CHC13, and can be doped with various oxidants increasing its electrical conductivity by several orders of magnitude. Its films are electrochromic and turn reversibly and rapidly from red to green-blue upon doping and undoping electrochemically. If the phenylene vinylene units are replaced with phenylene imine units, another interesting new polymer forms which is not readily dopable with the same oxidants but is dopable with acids. The new material exhibits strong chemochromism with dramatic shifts in its optical absorption spectra. In the undoped state both copolymers show strong photoluminescence.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 413: Symposium W – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials III , 1995 , 483
Copyright
Copyright © Materials Research Society 1996

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