Syntheses and Optoelectronic Properties of Quinoxaline Polymers: The Effect of Donor Unit

Sendur M., Balan A., Baran D., TOPPARE L. K.

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, cilt.49, sa.18, ss.4065-4070, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 18
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1002/pola.24849
  • Dergi Adı: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4065-4070
  • Anahtar Kelimeler: conducting polymers, conjugated polymers, donor-acceptor theory, electrochemistry, electrochromism, p- and n-doping, quinoxaline derivative, redox polymers, CONJUGATED POLYMERS, COPOLYMERS, PYRROLE, BANDGAP, GREEN
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

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-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)quinoxaline) (Gunbas et al., Adv Mater 2008, 20, 691-695). A blue shift in the polymer pi-pi* transitions revealed that the bandgap of such polymers with the same acceptor unit is related to the electron density of donor units. (C) 2011 Wiley Periodicals, Inc. J PolymSci Part A: PolymChem 49: 4065-4070, 2011