Synthesis and characterization of Schiff base derivative with pyrrole ring and electrochromic applications of its oligomer


KAYA İ. , BORA E., AYDIN A.

PROGRESS IN ORGANIC COATINGS, cilt.77, ss.463-472, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 77 Konu: 2
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.porgcoat.2013.11.008
  • Dergi Adı: PROGRESS IN ORGANIC COATINGS
  • Sayfa Sayıları: ss.463-472

Özet

In this study, Schiff base monomer, 2-[(1H-pyrrol-2-yl-methylene)amino]phenol (2-PMAP) was obtained by condensation reaction of 2-aminophenol with pyrrole-2-carbaldehyde. This monomer was oxidized in an aqueous alkaline medium by NaOCl to obtain the corresponding oligomer (O-2-PMAP). The resulting compounds were characterized by H-1- and C-13-NMR, FT-IR, UV-vis, TG-DTA and size exclusion chromatography (SEC) techniques. Metal complexes compounds of O-2-PMAP were prepared with various metal salts, such as Cu (AcO)(2)center dot H2O, Zn (AcO)(2)center dot 2H(2)O, Cd (AcO)(2)center dot 2H(2)O, Pb (AcO)(2)center dot 3H(2)O and Co (AcO)(2)center dot 4H(2)O. In addition to this, electrochemical copolymerization of O-2-PMAP with thiophene (Th), 3,4-ethylenedioxythiophene (EDOT) and pyrrole (Py) were performed onto indium/tin oxide (ITO)-coated glass plate. The spectral changes of the co-polymeric films were recorded in the range of the different potentials. The film stabilities of its EDOT and Py copolymers were determined. Consequently, it was realized that the copolymer films kept their stability for a long time. (C) 2013 Elsevier B.V. All rights reserved.