Microstructural and microwave shielding characteristics of water-soluble polypyrrole-polyvinyl alcohol-graphite oxide core-shell nanocomposites

This article reports on a facile route for the preparation of polypyrrole–polyvinyl alcohol–graphite oxide nanocomposites through the polymerization of pyrrole with different concentration (wt%) of graphite oxide using ammonium persulfate as an oxidant. The synthesized nanocomposites were characteri...

Full description

Saved in:
Bibliographic Details
Published in:Polymer composites 2012-09, Vol.33 (9), p.1534-1540
Main Authors: Basavaraja, C., Thinh, P.X., Kim, Won Jung, Revanasiddappa, M., Huh, Do Sung
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Graphite
Laminates
Microwave absorption
Nanocomposites
Oxides
Physicochemistry of polymers
Polymer industry, paints, wood
Polymerization
Resistivity
Scanning electron microscopy
Solubility
Technology of polymers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This article reports on a facile route for the preparation of polypyrrole–polyvinyl alcohol–graphite oxide nanocomposites through the polymerization of pyrrole with different concentration (wt%) of graphite oxide using ammonium persulfate as an oxidant. The synthesized nanocomposites were characterized by Fourier transform infrared spectroscopy, and their surface morphologies were studied by scanning electron microscopy and transmission electron microscopy. Their solubility in water, DC conductivity in solution, and the current–voltage characteristics of the nanocomposites were studied. Furthermore, the microwave absorption at 1.0–10.0 MHz and the effects of sample thickness on the microwave absorption were investigated. The composites including higher concentration of graphite oxide showed increased solubility and electrical conductivity, and high electromagnetic shielding effectiveness. POLYM. COMPOS. 2012. © 2012 Society of Plastics Engineers
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.22286