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- In relation to this article, we declare that there is no conflict of interest.
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Received August 1, 2011
Accepted October 18, 2011
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
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Electrorheological properties of polypyrrole-silica nanocomposite suspensions
Faculty of Applied Chemistry, Chonnam National University, 300, Yongbong-dong, Gwangju 500-757, Korea
Korean Journal of Chemical Engineering, July 2012, 29(7), 964-968(5), 10.1007/s11814-011-0270-7
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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 YD, Klingenberg DJ, J. Colloid Interface Sci., 168, 230 (1996)
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Cho MS, Choi HJ, To KW, Macromol. Rapid Commun., 19(6), 271 (1998)
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Block H, Kelly JP, Qin A, Watson T, Langmuir., 6, 6 (1990)
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Kim YD, Jung JC, Macromol. Res., 18(12), 1203 (2010)
Tlica J, Saha P, Quadrat O, Stejskal J, J. Phys. D:Appl. Phys., 33, 1773 (2000)
Lengalova A, Pavlinek V, Saha P, Stejskal J, Quadrat O, J. Colloid Interface Sci., 258(1), 174 (2003)
Flitton R, Johal J, Maeda S, Armes SP, J. Colloid Interface Sci., 173(1), 135 (1995)
Parthasarathy M, Klingenberg DJ, Mater. Sci. Eng., R17, 57 (1996)
Marshall L, Zukoski CF, Goodwin JW, J. Chem. Soc. Faraday Trans., 85, 2785 (1989)
Su SJ, Kuramuto N, Syn. Metals., 114, 147 (2000)
Gangopadhyay R, De A, Eur. Polym. J., 35, 1985 (1999)
