Structure-property relations in donor-acceptor-donor type benzimidazole containing conjugated polymers

ZAIFOGLU B., HACIOGLU S. O., UNLU N. A., ÇIRPAN A., TOPPARE L.

JOURNAL OF MATERIALS SCIENCE, cilt.49, sa.1, ss.225-231, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 1
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1007/s10853-013-7696-8
  • Dergi Adı: JOURNAL OF MATERIALS SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.225-231
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In order to gain deeper insight about structure-property relations properties, two novel donor-acceptor-donor type monomers were studied. 4'-Tert-butyl-4,7-di(thiophen-2-yl)spiro[benzo[d]imidazole-2,1'-cyclohexane] and 4,7di(2,2'-bithiophen-5-yl)-4'-tert-butylspiro[benzo[d]imidazole-2,1'-cyclohexane] were synthesized and electrochemically polymerized. Electrochemical and optical properties of the polymers were investigated via cyclic voltammetry and UV-Vis-NIR spectroscopy techniques. It was found that changing donor unit from thiophene to bithiophene results in a drastic change in optical and electrochemical properties, especially in optical contrast.