ELECTROCHEMICAL PROPERTIES OF PHOTOCURABLE MEMBRANES FOR ALL-SOLID-STATE CHEMICAL SENSORS

The development of ion-selective electrodes with inner solid contact I s described using photocurable acrylated polyurethane matrices and ele ctron-ion exchanger (EI), which provides a reversible transition from electrical conductivity in the metal to ionic conductivity in the memb rane phase. The application of a photocurable polymer matrix gives the possibility to use modern photolithographic techniques for the format ion of all-solid-state chemical sensors. The influence of the polymer matrix and of the preparation of the membrane on the electro-chemical properties of calcium-selective membrane sensors is shown. For carbona te-selective membranes the possibility of improvement of electrochemic al characteristics by incorporation of the anionic additive tetrakis ( 4-chlorophenyl) berate was studied.