Design of Potassium‐Selective Mixed Ion/Electron Conducting Polymers

An approach providing cation‐selective poly‐(3,4‐ethylenedioxythiophene)(PEDOT):polyelectrolyte‐mixed conductors is presented in this communication based on the structural modification of this ambivalent (ionic and electronic conductive) polymer complex. First, an 18‐crown‐6 moiety is integrated int...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2020-06, Vol.41 (12), p.e2000134-n/a
Main Authors: Villarroel Marquez, Ariana, Salinas, Gerardo, Abarkan, Myriam, Idir, Maël, Brochon, Cyril, Hadziioannou, Georges, Raoux, Matthieu, Kuhn, Alexander, Lang, Jochen, Cloutet, Eric
Format: Article
Language:English
Subjects:
Biocompatibility
Biosensors
Cations
Chemical Sciences
Conducting polymers
Conductors
coulovoltammetry
crown ethers
Electric Conductivity
Electrochemical analysis
Electrochemistry
Inks
ion sensing
Ions - chemistry
Metal ions
Molecular Structure
Monomers
NMR
Nuclear magnetic resonance
PEDOT
Polyelectrolytes
Polymers
Polymers - chemical synthesis
Polymers - chemistry
Potassium
Potassium - chemistry
Selectivity
Styrene
Titration
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Summary:An approach providing cation‐selective poly‐(3,4‐ethylenedioxythiophene)(PEDOT):polyelectrolyte‐mixed conductors is presented in this communication based on the structural modification of this ambivalent (ionic and electronic conductive) polymer complex. First, an 18‐crown‐6 moiety is integrated into the styrene sulfonate monomer structure as a specific metal cation scavenger particularly targeting K+ versus Na+ detection. This newly functionalized monomer is characterized by 1H NMR titration to evaluate the ion selectivity. Aqueous PEDOT dispersion inks containing the polymeric ion‐selective moieties are designed and their electrical and electrochemical properties analyzed. These biocompatible inks are the first proof‐of‐concept step towards ion selectivity in view of their interfacing with biological cells and microorgans of interest in the field of biosensors and physiology. Differentiating and sensing K+ cations versus Na+ through specific functionalization of mixed conducting poly‐(3,4‐ethylenedioxythiophene) complexes.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.202000134