Electroactive Thermoplastic Dielectric Elastomers as a New Generation Polymer Actuators

Title
Electroactive Thermoplastic Dielectric Elastomers as a New Generation Polymer Actuators
Authors
구종민
Keywords
Thermoplastic Elastomer; Acutators; Dielectric
Issue Date
2012-03
Publisher
Thermoplastic Elastomers
Citation
, 399-416
Abstract
In this book, we demonstrated that thermoplastic dielectric elastomers are distinguished from conventional homopolymer dielectric elastomers such as acrylics and silicones in many aspects such as nanostructure morphology, shape memory property and electric actuation mechanism. Unlike conventional homopolymer dielectric elastomers with one phase structure, these thermoplastic dielectric elastomers exhibit a well defined microphaseseparated nanostructure owing to the molecular architecture. That kind of nanostructure results in the physical-crosslink-induced shape memory effect which is quite different from chemical-crosslink-induced shape memory effect of conventional dielectric elastomers. Most of all, thermoplastic dielectric elastomers have much larger true electrostrictive coefficients than conventional homopolymer dielectric elastomers, thus show the much fabulous electric actuation properties even at low electric field. Such unique behavior basically stems from the presence of a high density of dielectric mismatched nanostructures. As a result, we consider thermoplastic dielectric elastomers as fascinating actuation materials, although many challenges still remains for the real applications. We hope that, in future, this thermoplastic dielectric elastomer approach contributes to opening an era of polymer transducers.
URI
http://pubs.kist.re.kr/handle/201004/43965
Appears in Collections:
KIST Publication > ETC
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