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Materials 2015, 8(8), 4932-4942; doi:10.3390/ma8084932

Core-Shell-Structured Copolyaniline-Coated Polymeric Nanoparticle Suspension and Its Viscoelastic Response under Various Electric Fields

Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Luciano Feo
Received: 1 June 2015 / Revised: 1 June 2015 / Accepted: 24 July 2015 / Published: 3 August 2015
(This article belongs to the Section Advanced Composites)
View Full-Text   |   Download PDF [1172 KB, uploaded 3 August 2015]   |  

Abstract

Semi-conducting poly(n-methylaniline) (PNMA)-coated poly(methyl methacrylate) (PMMA) composite nanoparticles were synthesized using cross-linked and grafted PMMA particles as a core, and then, the PNMA shell was coated via chemical oxidative polymerization on the surface of modified PMMA nanoparticles. Their electroresponsive electrorheological characteristics when dispersed in silicone were confirmed under applied electric fields using a rotational rheometer, focusing on their viscoelastic response. Using a frequency sweep test, the frequency dependence of both the storage and loss moduli was confirmed to increase upon increasing the electric field, with a stable plateau regime over the entire angular frequency range. View Full-Text
Keywords: electrorheological; core-shell; viscoelasticity; poly(methyl methacrylate); copolyaniline electrorheological; core-shell; viscoelasticity; poly(methyl methacrylate); copolyaniline
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Moon, I.-J.; Choi, H.J. Core-Shell-Structured Copolyaniline-Coated Polymeric Nanoparticle Suspension and Its Viscoelastic Response under Various Electric Fields. Materials 2015, 8, 4932-4942.

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