info:eu-repo/semantics/conferenceProceedings
Synthesis and Characterization Of Conductive Polyaniline- Graft-Acrylic- Copolymers
Autor
ERASTO ARMANDO ZARAGOZA CONTRERAS
Institución
Resumen
In recent years, intrinsic electrically conductive (ICP) polymers have been studied because of
their applications have demonstrated to be changed over the full range from an insulator to a
metallic conductor. [1]. Polyaniline (PAni) is one of the most intensively investigated ICPs due
to its environmental stability, low cost of raw materials and ease of synthesis [2]. However, as
in other ICPs PAni is insoluble, infusible and almost non-processable, which makes difficult its
potential application. Its properties such as processability, solubility, spectroscopic and
electrochromic properties, can be modified and improved by suggested methods [3,4,5]. In
the presented work was aimed to obtain copolymers of Polyaniline with the maintanence of
the electrical conductivity in its thin films. Firstly, styrene sulfonate of PAni (PAni-SSA)
synthesis, via oxidative polymerization pathway, and secondly, the synthesis of the graft
copolymers of PAni, were studied. The morphology of PAni-SSA and the three copolymers
was characterized by Scanning Electron Microscopy (SEM) for studies. Synthetization of
PAni-SSA and graft copolymers of PAni-SSA by free radical pathway through emulsion
polymerization technique, permitted to achieve the particle size ~30 nm. The thickness of the
films which were deposited on to glass slides were also measured by SEM by inclining them
45 °. As seen in Fig. 1 the materials were deposited on the glass slides in nanometric
thickness.
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