Synthesis and characterization of polyphenols derived from 4-fluorobenzaldeyde: The effect of electron-donating group on some physical properties


KAYA İ., Kamaci M., ARICAN F.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.125, sa.1, ss.608-619, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 125 Sayı: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1002/app.36273
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.608-619
  • Anahtar Kelimeler: polyazomethine, cyclic voltammetry, thermal analysis, band gap, electron-donating group
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

In this study, we proposed to investigate how the effect of electron-donating methyl (?CH3) group at p-position of amin (?NH2) group in aminophenol (AP) compound affected thermal stability, optical, electrochemical properties, and conductivity measurement. For this reason, we choice 2-AP and 2-amino-4-methylphenol compounds and synthesized phenolic monomers by condensation reactions 4-fluorobenzaldehyde with aromatic amino phenols. Then, these monomers were converted to their polyphenol derivatives by oxidative polycondensation reactions in an aqueous alkaline medium. Structural characterizations were carried out by FTIR, NMR, and size exclusion chromatography. Cyclic voltammetry was used to determine the electrochemical oxidation-reduction characteristics. Optical properties were investigated by UVvis and fluorescence analyses. Solid state electrical conductivities were measured on polymer films by four-point probe technique using an electrometer. Thermal data of monomer/polymer and polymers were obtained by TG-DTA and DSC techniques, respectively. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012