Synthesis and characterization of novel polymers based on carbazole with NaOCl and FeCl3 oxidants

Kocaeren A.

IRANIAN POLYMER JOURNAL, vol.25, no.1, pp.15-24, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 1
  • Publication Date: 2016
  • Doi Number: 10.1007/s13726-015-0400-x
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.15-24
  • Keywords: Oxidative polymerization, Carbazole, Phenol, SEM-EDS, Thermal stability
  • Çanakkale Onsekiz Mart University Affiliated: No


4-(9H-carbazol-9-yl) phenol-based materials were synthesized via the oxidative method using NaOCl and FeCl3 oxidants. Namely in this study, two different oxidants, i.e., NaOCl and FeCl3, were used for the polymerization reactions. The obtained oxidative polymer with NaOCl was synthesized in an aqueous alkaline medium. A solution of FeCl3 oxidant in chloroform was used for oxidative polymerization process, as well. The obtained polymers had different colors of brown and green. The compounds were characterized by FTIR and H-1 NMR analyses. The thermal and morphological properties of these compounds were also investigated, and their thermal stabilities were determined via TGA-DTA measurements. Additionally, their surface properties were investigated by scanning electron microscopy coupled to energy-dispersive spectrometry (SEM-EDS) analysis. SEM micrographs of the synthesized compounds were recorded at different amplifications like 100 nm, 10 and 1 mu m. Furthermore, the elemental analysis of the compounds was performed for a more detailed investigation. According to TGA-DTA results, the obtained polymer with FeCl3 oxidant was thermally more stable than the one synthesized with NaOCl oxidant. According to GPC analysis, the obtained polymer with FeCl3 oxidant has 1.78 PDI value. As a result, the synthesized polymers could be used in electronic, optoelectronic, electro-active, and photovoltaic applications because of having the structures allowing the transport of electrons.