Electrochromism in multichromic conjugated polymers: Thiophene and azobenzene derivatives on the main chain

Apaydin D. H., Akpinar H., Sendur M., TOPPARE L. K.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, cilt.665, ss.52-57, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 665
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.jelechem.2011.11.016
  • Dergi Adı: JOURNAL OF ELECTROANALYTICAL CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.52-57
  • Anahtar Kelimeler: Azobenzene, Multichromism, Donor-acceptor-donor, Conjugated polymer, LIQUID-CRYSTALLINE POLYMER, OPTICAL-PROPERTIES, AZO, UNITS
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Novel donor-acceptor-donor type polymers containing azobenzene group in polymer backbone chains were synthesized and their electrochromic properties were investigated. To increase the strength of the acceptor unit, fluorinated azobenzene containing donor-acceptor-donor type polymer was also synthesized. Cyclic voltammetry and spectroelectrochemistry studies showed that poly((E)-1,2-bis(4-(4-hexylthiophen-2-yl)phenyl)diazene) (P2) and poly((E)-1,2-bis(2-fluoro-4-(4-hexylthiophen-2-yl)phenyl) diazene) (P3) were multichromic and the polymer containing fluorine group showed p- and n-doping properties, hence they are promising candidates for various applications. (C) 2011 Elsevier B.V. All rights reserved.