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The Electrical Conductivity of Graphite Nanoplatelet Filled Conjugated Polyacrylonitrile

✍ Scribed by Maya Green; Gad Marom; Jing Li; Jang-Kyo Kim

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
185 KB
Volume
29
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

The electrical conductivity of composites of exfoliated graphite nanoplatelets (GNPs), including bromine‐doped GNP, and conjugated polyacrylonitrile has been investigated. The focal point is the dual nature of the graphite nanoparticles, which exhibit both intrinsic electrical conductivity and doping capability of semi‐conductive polymers such as conjugated polyacrylonitrile to form charge‐transfer complexes. The conductivity is particularly enhanced in conjugated polyacrylonitrile composites (e.g., with 6 wt.‐% graphite nanoplatelets) where the value rises from 1 × 10^−10^ to 2 × 10^−3^ S · cm^−1^, which reflects jointly the conductivity of the doped semi‐conductive polymer together with the percolation‐based conductivity of the particles.

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