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AssigneeInstitut fur Chemo-und Biosensorik Munster e.V.
InventorsAndreas Katerkamp, Maria Hiegemann, Erk Gedig
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The invention relates to sensor membranes for determining oxygen concentrations and to a process for the preparation thereof, in which, in a polymer matrix which is permeable to oxygen, an indicator is present whose optical and physicochemical properties can be influenced by the respective analytes. Starting from the disadvantages of known sensor membranes, it is the object of the invention to provide a sensor membrane which is thermally and also dimensionally stable, and can be prepared simply and flexibly. This object is achieved according to the invention in that the polymer matrix which contains the optical oxygen indicator is formed from a polymer containing sulfur, preferably in the main chain, particularly preferably containing sulfide and/or sulfone functionalities in the main chain.
A sensor membrane for determining oxygen concentrations, in which, in a polymer matrix permeable to oxygen, an indicator is present whose optical and physicochemical properties can be influenced by oxygen, wherein the polymer matrix consists predominantly of sulfur polymers in which the sulfur is incorporated into the main chain of the polymer in the form of sulfide or sulfone.
Dependencies are inferred from the claim text.