Syntheses and optoelectronic properties of quinoxaline polymers: The effect of donor unit

Merve Sendur, Abidin Balan, Derya Baran, Levent Toppare*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Tuning the bandgap of electrochromic polymers is one of the important research topics in electrochromism. To understand clearly the effect of donor unit in donor-acceptor-donor-type polymers, 2,3-bis(4-tert-butylphenyl)-5,8- di(thiophen-2-yl)quinoxaline and 2,3-bis(4-tert-butylphenyl)-5-(2,3- dihydrothieno[3,4-b][1,4]dioxin- 5-yl)-8-(thiophen-2-yl)quinoxaline were synthesized and polymerized potentiodynamically. Their electrochemical and spectroelectrochemical studies were performed, and the results were compared with those of poly(2,3-bis(4-tert-butylphenyl)-5,8-bis(2,3-dihydrothieno[3,4-b] [1,4]dioxin-5-yl)quinoxaline) (Gunbas et al., Adv Mater 2008, 20, 691-695). A blue shift in the polymer π-π* transitions revealed that the bandgap of such polymers with the same acceptor unit is related to the electron density of donor units.

Original languageEnglish (US)
Pages (from-to)4065-4070
Number of pages6
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume49
Issue number18
DOIs
StatePublished - Sep 15 2011

Keywords

  • conducting polymers
  • conjugated polymers
  • donor-acceptor theory
  • electrochemistry
  • electrochromism
  • p- and n-doping
  • quinoxaline derivative
  • redox polymers

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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