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Mechanically Compliant Electrodes and Dielectric Elastomers from PEG-PDMS Copolymers

Published online by Cambridge University Press:  24 May 2016

Aliff Hisyam A Razak ,
Frederikke Bahrt Madsen  and
Anne Ladegaard Skov
Aliff Hisyam A Razak
Affiliation:
Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 227, 2800 Kgs. Lyngby, Denmark. Faculty of Engineering Technology, University of Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
Frederikke Bahrt Madsen
Affiliation:
Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 227, 2800 Kgs. Lyngby, Denmark.
Anne Ladegaard Skov*
Affiliation:
Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 227, 2800 Kgs. Lyngby, Denmark.
*
*(Email: [email protected])
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Abstract

Soft conducting elastomers have been prepared from polydimethylsiloxane-polyethyleneglycol (PDMS-PEG) copolymer and surfactant-stabilized multi-walled carbon nanotubes (MWCNTs). The copolymer was chain-extended with PDMS of molecular weight 17.2 kg mol-1 in order to obtain a crosslinkable PDMS with molecular weight around 20 – 30 kg mol-1. MWCNTs were treated with surfactant and sonicated for better dispersion in the polymer matrix. The conductivity and mechanical properties of conducting elastomers were thoroughly investigated including stress and strain at break. The developed conducting elastomers showed high conductivity combined with inherent softness. The high conductivity and softness, PDMS-PEG copolymers with incorporated MWCNTs hold great promises as compliant and highly stretchable electrodes for stretchable devices such as electro-mechanical transducers.

Keywords

dielectric propertieselastic propertiesactuator
Type
Articles
Information
MRS Advances , Volume 1 , Issue 52: Soft Materials and Biomaterials , 2016 , pp. 3497 - 3508
Copyright
Copyright © Materials Research Society 2016 

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References

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