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 journalArticlepeer-review

18 Scopus citations

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

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Electroactuation with single charge carrier ionomers: The roles of electrostatic pressure and steric strain'. Together they form a unique fingerprint.

Cite this