Abstract
Nanometer-scale (approximately 70 nm) silica/polypyrrole composites were synthesized using a selective polymerization based on an in situ-generated strong oxidizing agent (NO+ ions) on the silica surface. The effects of the concentrations of reactants (pyrrole monomer and NO2- ions) and the presence of additional dopant anions (Cl- or SO2-4) on the polypyrrole (ppy) content and electric conductivity of the silica/ppy composites are examined. It was found that the ppy content in the silica/ppy composites increased with the reactant concentration in the range of 0.02-0.2 M. It is revealed that employing additional dopant anions could be a promising way to improve the electrical conductivity of the composites.
Original language | English |
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Pages (from-to) | 2881-2884 |
Number of pages | 4 |
Journal | Bulletin of the Korean Chemical Society |
Volume | 36 |
Issue number | 12 |
DOIs | |
State | Published - 1 Dec 2015 |
Bibliographical note
Publisher Copyright:© 2015 Korean Chemical Society, Seoul & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Keywords
- Electrical conductivity
- Polypyrrole
- Selective polymerization
- Silica