Click-immobilized K+-selective ionophore for potentiometric and optical sensors

Clickable crown ether type of K+-selective ionophore was synthesized for the first time. The ionophore can be easily immobilized in azide-modified poly (vinyl chloride) (N3PVC) matrix by azide-alkyne Huisgen cycloaddition (“click chemistry”) for the fabrication of potentiometric and optical sensors. Formation of the triazole linkers in the polymer matrix decreases the solubility of functionalized PVC significantly. Azidation of PVC for 12 h...