Electro-chemo-mechanical deformation properties of polypyrrole/dodecylbenzenesulfate linear actuators in aqueous and organic electrolyte - Université d'Angers Accéder directement au contenu
Article Dans Une Revue RSC Advances Année : 2016

Electro-chemo-mechanical deformation properties of polypyrrole/dodecylbenzenesulfate linear actuators in aqueous and organic electrolyte

A. Kivilo
  • Fonction : Auteur
Zane Zondaka
  • Fonction : Auteur
Arko Kesküla
  • Fonction : Auteur
Tarmo Tamm
  • Fonction : Auteur
Rudolf Kiefer
  • Fonction : Auteur

Résumé

The immobilization of dodecylbenzenesulfonate (DBS−) in polypyrrole (PPy) during electropolymerization is typically expected to lead to cation-driven activity and actuation properties, at least in actuation electrolyte. Here, the complete reversal of the behavior is demonstrated, as the solvent is changed from aqueous to organic while maintaining the same electrolyte – bis(trifluoromethane)sulfonimide lithium salt. Isotonic and isometric electro-chemo-mechanical deformation (ECMD) measurements under cyclic voltammetric and square wave potential measurements yielded strain and stress values in ranges of 9–10% and 0.7–1 MPa, respectively, independent of the solvent. The morphology of PPy/DBS films also changed with the solvent exchange, while elemental analysis confirmed that fluorine atoms from the TFSI− anions can be found only in the PPy/DBS films operated in organic solvent.

Dates et versions

hal-02528723 , version 1 (01-04-2020)

Identifiants

Citer

A. Kivilo, Zane Zondaka, Arko Kesküla, Pejman Rasti, Tarmo Tamm, et al.. Electro-chemo-mechanical deformation properties of polypyrrole/dodecylbenzenesulfate linear actuators in aqueous and organic electrolyte. RSC Advances, 2016, 6 (99), pp.96484-96489. ⟨10.1039/C6RA20766A⟩. ⟨hal-02528723⟩

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