Ion-selective sensors incorporating strongly adhesive polymeric membranes
- 1 January 1990
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Chemical-selective membranes having matrices of polyvinyl chloride (PVC)/(hydroxylated PVC), polyurethane/(hydroxylated PVC), and moisture-curable silicone rubber are compared to conventional PVC membranes in terms of adhesion to silicon nitride. A well-controlled peel test, developed for this evaluation, yields repeatable, quantitative results for both wet and dry membranes. Polyurethane and silicon membranes have much better adhesion to the sensor surface than do PVC or hydroxylated PVC. The hydroxylated PVC- and polyurethane-based membranes have electrochemical performance equivalent to that of PVC membranes in terms of slope, detection limit, and selectivity. Though the electrochemical properties of the silicone-matrix membrane are degraded somewhat by its high resistance, it has extremely good adhesion.<>Keywords
This publication has 5 references indexed in Scilit:
- Polyimide-matrix chemical-selective membranesSensors and Actuators B: Chemical, 1990
- Modified poly(vinyl chloride) matrix membranes for ion-selective field effect transistor sensorsThe Analyst, 1988
- The structure-mechanical property relationship of amorphous silicon monoxide thin filmsThin Solid Films, 1987
- Synthesis and characterization of new polyvinylchloride membranes for enhanced adhesion of electrode surfacesJournal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1986
- Peel adhesion. I. Some phenomenological aspects of the testJournal of Applied Polymer Science, 1963