Electroactuation with single charge carrier ionomers

The roles of electrostatic pressure and steric strain

Alpha A. Lee, Ralph H. Colby, Alexei A. Kornyshev

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We develop a theory for electroactuators with single charge carrier ionomers that reveals the interplay between the effects of electrostatic pressure resulting from ionic repulsion, and of the steric strain caused by the volume of ions in the double layer (and missing from the depletion layer). The theory shows that the electrostatic pressure can either reinforce or compete with steric strain, depending on the effective volume of the polarized ions in the double layer. Theoretical predictions are obtained for the electroactuator equilibrium deflection and bending dynamics, showing good agreement with available experimental data. Insights are offered into two directions of rational design of smart ionomer materials for actuators.

Original languageEnglish (US)
Pages (from-to)3767-3776
Number of pages10
JournalSoft Matter
Volume9
Issue number14
DOIs
StatePublished - Apr 14 2013

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Ionomers
Charge carriers
charge carriers
Electrostatics
Ions
electrostatics
smart materials
Actuators
deflection
ions
depletion
actuators
predictions
Direction compound

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

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Electroactuation with single charge carrier ionomers : The roles of electrostatic pressure and steric strain. / Lee, Alpha A.; Colby, Ralph H.; Kornyshev, Alexei A.

In: Soft Matter, Vol. 9, No. 14, 14.04.2013, p. 3767-3776.

Research output: Contribution to journalArticle

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