A. Villarroel Marquez, G. Salinas, M. Abarkan, M. Idir, C. Brochon, G. Hadziioannou, M. Raoux, A. Kuhn, J. Lang, E. Cloutet
Macromol. Rapid Commun. 2020, 41, 2000134 (Back Cover)
An approach providing cation selective PEDOT:polyelectrolyte mixed conductors is presented in this communication, based on the structural modification of this ambivalent (ionic and electronic conductive) polymer complex. First, a 18-crown-6 moiety was integrated into the styrene sulfonate monomer structure as a specific metal cation scavenger particularly targeting K+ detection. This newly functionalized monomer has been characterized by 1H- NMR titration to evaluate the ion selectivity. Aqueous PEDOT dispersion inks containing the polymeric ion-selective moieties have been designed and their electrical and electrochemical properties have been analyzed. These biocompatible inks are the first proof-of-concept step towards the targeted selectivity in view of their interfacing with biological cells and microorgans of interest in the field of biosensors and physiology.
