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Physical Principles of Ionic Polymer–Metal Composites as Electroactive Actuators and Sensors

Published online by Cambridge University Press:  31 January 2011

Il-Seok Park ,
Kwangmok Jung ,
Doyeon Kim ,
Sang-Mun Kim  and
Kwang J. Kim
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Abstract

This article introduces and considers the fundamental understanding of ionic polymer–metal composites (IPMCs) functioning as electroactive actuators and sensors. IPMCs consist of ion-exchange polymers acting as base materials and metal layers functioning as electrodes. The actuation and sensing abilities of IPMCs are dependent upon the components of ion-exchange polymers (ionic groups and cations) and electrode materials. In order to improve the bending and sensing performance of the IPMCs, an integral, two-step electroplating technique and a requisite dispersion agent are used during fabrication. Electroding materials also play a key role in determining the properties of IPMCs, and numerous methods in electroding have been tried, making use of various metals, carbon nanotubes, and composites. So far, IPMCs have been adapted as robotic actuators, artificial muscles, and electrical sensors. In the future, it is expected that IPMCs will broadly spread their roles from small-sized biomedical devices to large-scale actuators for aerospace as well as many industrial applications.

Type
Research Article
Information
MRS Bulletin , Volume 33 , Issue 3: Electroactive Polymer Actuators and Sensors , March 2008 , pp. 190 - 195
Copyright
Copyright © Materials Research Society 2008

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