Poly(3′,4′-dibutyl-α-terthiophene-phenylene-vinylene), and poly(3′,4′-dibutyl-α-terthiophene-phenylene-imine): synthesis and properties of two new isoelectronic soluble conjugated polymers

Chenggang Wang, Xusheng Xie, Eugene LeGoff, Mercouri G. Kanatzidis

Research output: Contribution to journalConference article


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 CHCl3, 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.

Original languageEnglish
Pages (from-to)483-490
Number of pages8
JournalMaterials Research Society Symposium - Proceedings
Publication statusPublished - Jan 1 1996
EventProceedings of the 1995 MRS Fall Meeting - Boston, MA, USA
Duration: Nov 26 1995Dec 1 1995


ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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