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, cilt.37, sa.4, ss.379-382, 1999 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 4
  • Basım Tarihi: 1999
  • Dergi Adı: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.379-382
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

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.