Synthesis and electrochemical polymerization of ter-arenes based on N-ethyl carbazole and thiophene


Sezer E., Van Hooren M., Sarac A., Hallensleben M.

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, vol.37, no.4, pp.379-382, 1999 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 4
  • Publication Date: 1999
  • Title of Journal : JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Page Numbers: pp.379-382

Abstract

3,6-Bis(2-thiophenyl)-9-Ethyl carbazole (BTECZ) has been synthesized with the aim of obtaining extensively conjugated, low oxidation potential monomers relative to becoming analogous. The products were characterized via common techniques such as H-1-NMR, MS UV-visible, and electrochemical measurements. The cyclic voltammogram of BTECZ reveals an irreversible behavior, suggesting that a chemical reaction after the electron transfer is so fast that polymerization occurs. Oxidation of BTECZ takes place at about 0.849 V Fc/Fc(+), which is much lower than thiophene or ethylcarbazole monomers, and thus, there is a decrease in the oxidation potential side reactions. Electrochemical polymerization may occur via the unsubstituted 2-position of the thiophene ring, revealing only one wave.