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, vol.49, no.1, pp.225-231, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1007/s10853-013-7696-8
  • Title of Journal : JOURNAL OF MATERIALS SCIENCE
  • Page Numbers: pp.225-231

Abstract

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.