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Structural and dielectric properties of CuCl 2 and ZnCl 2 doped polyaniline
Author(s) -
Ozkazanc Ersel,
Zor Sibel,
Ozkazanc Hatice
Publication year - 2010
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20979
Subject(s) - polyaniline , materials science , differential scanning calorimetry , adsorption , fourier transform infrared spectroscopy , scanning electron microscope , dielectric , doping , conductivity , polymerization , spectroscopy , chemical engineering , infrared spectroscopy , analytical chemistry (journal) , composite material , chemistry , organic chemistry , polymer , thermodynamics , physics , optoelectronics , quantum mechanics , engineering
Abstract This article addresses the synthesis and characterization of polyaniline (PANI) both in pure and doped forms with various levels of CuCl 2 and ZnCl 2 in HCl medium where ammonium persulphate was used as an oxidant. Synthesized polymeric materials were characterized spectroscopically (UV‐visible spectroscopy, Fourier transform infrared spectroscopy, and Atomic absorption spectroscopy), thermally (Differential scanning calorimetry), and morphologically (Scanning electron microscopy). Free adsorption energy was calculated via Langmuir adsorption isotherm based on the quantities of Cu 2+ and Zn 2+ cations in both pre‐ and post‐ polymerization process where it was found that Cu 2+ and Zn 2+ are adsorbed physically on PANI surface. The dielectric measurements as a function of frequency and temperature showed that conductivity decreased with increasing doping levels of metal cations at high temperatures. POLYM. COMPOS., 31:1862–1868, 2010. © 2010 Society of Plastics Engineers.