Incorporation Of Copper(Ii) Oxide And Calcium(Ii) Oxide On Polyaniline: Synthesis And Characterization
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Date
2014-02
Authors
Yee, Keat Wee
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
A novel route to prepare polyaniline (PANI) using two oxidizing agents, ammonium
peroxydisulfate (APS) and sodium hypochlorite (NaOCl) which represents a facile
synthetic method for the synthesis of high conductive PANI nanofibers. NaOCl acts
as a co-oxidant to speed up the polymerization rate and direct the growth of PANI
into nanofibers. PANI was polymerized in the presence of copper(II) oxide (CuO) or
calcium(II) oxide (CaO) using these two oxidizing agents. The effect of different
metal oxide contents to the morphology, electrical conductivity and thermal stability
of PANI was studied systematically in this work. The physical interaction between
PANI and metal oxides were monitored by Fourier Transforms Infrared
Spectroscopy (FTIR) and Ultraviolet-Visible Spectroscopy (UV-Vis). The results
revealed that maximum interaction was found for the PANI-CuO nanocomposite
with 0.010 g CuO and the PANI-CaO nanocomposite with 1.000 g CaO, respectively.
From the Scanning Electron Microscopy (SEM) observation, the prepared
nanocomposites were of nanofibers structure with diameter sized 60 - 100 nm and
distribution of metal oxide nanoparticles (10 - 20 nm), showing that the use of APS
and NaOCl hindered the growth of PANI into nanoparticles agglomeration due the
nucleus effect of metal oxide. The structural PANI nanocomposites were further
supported by Transmission Electron Microscopy (TEM). A significant increase in
electrical conductivity has been observed upon the addition of metal oxide.
Description
Keywords
Of Copper(Ii) Oxide , Calcium(Ii) Oxide