Abstract
The electrorheological (ER) and dielectric properties of PPy-silica nanocomposite suspensions in silicone oil were investigated. Various PPy-silica nanocomposite particles were synthesized by suspension polymerization in the presence of silica nanoparticles controlling the ratio of silica/pyrrole during the polymerization. The ER response and the particle conductivity increased with the increase in the silica/pyrrole ratio, indicating that the increased particle polarization plays a role in enhancing the ER response. The dielectric properties of PPy-silica nanocomposite particles and their suspensions support that the enhanced ER response with the increase in the silica/pyrrole ratio arises from the enhanced polarization, which originates from the increased particle polarization.
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Kim, Y.D., Hong, G.G. Electrorheological properties of polypyrrole-silica nanocomposite suspensions. Korean J. Chem. Eng. 29, 964–968 (2012). https://doi.org/10.1007/s11814-011-0270-7
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DOI: https://doi.org/10.1007/s11814-011-0270-7