Enhancing electrochromic properties of polypyrrole by silsesquioxane nanocages

Metin Ak, Burcin Gacal, Baris Kiskan, Yusuf Yagci*, Levent Toppare

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

107 Citations (Scopus)

Abstract

A new monomer, octa(thiophenephenyl)silsesquioxane (OThiophenePS) was synthesized via click chemistry. The chemical structure of OThiophenePS was characterized by nuclear magnetic resonance (1H NMR) and Fourier transform infrared (FT-IR) spectroscopies. Electrochemical polymerization of pyrrole with OThiophenePS was performed resulting in polypyrrole-attached, polyhedral oligomeric silsesquioxane (OPS-PPy). The spectroelectrochemical studies show that the electrochromic properties of (OPS-PPy) are superior to those of polypyrrole (PPy). This great improvement can be attributed to the more accessible doping sites and the facile ion movement during the redox switching brought by the loose packing of the PPy chains.

Original languageEnglish
Pages (from-to)2202-2210
Number of pages9
JournalPolymer
Volume49
Issue number9
DOIs
Publication statusPublished - 29 Apr 2008

Keywords

  • Conducting polymers
  • Polyhedral oligomeric silsesquioxane
  • Polypyrrole

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