Advances in Polymeric Materials for Electromechanical Devices

B. Tyler White, Timothy E. Long

Research output: Contribution to journalReview articlepeer-review

20 Scopus citations

Abstract

Electroactive polymers (EAP) provide lightweight and cost-effective materials that enable the next generation of electromechanical devices. Commercial polymers have historically dominated research in EAP devices due to their availability. However, several drawbacks of these materials have limited their commercial applications, necessitating new materials for the commercial success of future EAP devices. This review highlights recent advances in novel EAPs for ionic polymer-metal composites (IPMC) and dielectric elastomer actuators (DEA). Ion-containing block copolymers and charged segmented condensation polymers demonstrate suitable electromechanical properties competitive with Nafion-based IPMCs. In addition, swelling ionic polymer membranes with free ionic liquid enhances ionic conductivity and promotes electromechanical actuation. Synthetic approaches to increasing permittivity in dielectric elastomers are also explored as a method of producing more efficient DEAs. Incorporating polar functional groups into siloxane and acrylic elastomers through grafting or blending provides high-dielectric elastomers for use in DEAs with low driving voltages.

Original languageEnglish (US)
Article number1800521
JournalMacromolecular Rapid Communications
Volume40
Issue number1
DOIs
StatePublished - Jan 2019
Externally publishedYes

Keywords

  • dielectric elastomers
  • electroactive actuators
  • ionic polymer metal composites
  • polymer transducers

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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