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The electromagnetic interference shielding of polypyrrole impregnated conducting polymer composites
Author(s) -
Ruckenstein E.,
Park J. S.
Publication year - 1991
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.750120410
Subject(s) - polypyrrole , materials science , composite material , polymer , conductive polymer , composite number , polystyrene , emulsion polymerization , electromagnetic shielding , polymerization
A lightweight conducting polymer composite was prepared by the incorporation of conducting polypyrrole in the pores of a host polymer to form a conductive network. The inclusion of polypyrrole in a porous cross‐linked polystyrene host polymer, prepared by the concentrated emulsion polymerization method, was carried out by imbibing the host polymer with a pyrrole solution (or oxidant solution), partially drying the saturated host polymer, and imbibing it again with the oxidant solution (or pyrrole solution) for 2 h. The conductivity of the polymer composite is as high as 0.5 S/cm and the shielding effectiveness of the composite reaches 26 dB in the frequency range from 1.0 to 2.0 GHz.