Deposition of Ion-Conductive Membranes from Ionic Liquids via Initiated Chemical Vapor Deposition

Marianne Krauter, Martin Tazreiter, Alberto Perrotta, Anna Maria Coclite*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, liquid droplets of 1-allyl-3-methylimidazolium dicyanamide have been processed by initiated chemical vapor deposition (iCVD) with a cross-linked polymer film consisting of (hydroxyethyl)methacrylate and ethylene glycol dimethacrylate to develop free-standing, ion-conductive membranes. We found that the obtained films are solids and have a conductivity of up to 18 ± 6 mS/cm, associated with the negatively charged counterion, indicating no loss of conductivity, compared to the ionic liquid in the liquid state. The membranes were conductive within a large process window and in air, thanks to the fact that the iCVD process does not affect the mobility of the anion in the ionic liquid. Furthermore, we demonstrate that varying the deposition conditions can influence the homogeneity and conductivity of the resulting membranes. The promising results of this study represent an important stepping stone on the way to novel ion-conductive membranes.

Original languageEnglish
Pages (from-to)7962-7969
Number of pages8
JournalMacromolecules
Volume53
Issue number18
DOIs
Publication statusPublished - 22 Sep 2020

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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