Recent research at the INEEL has focused on the versatility inherent in polyphosphazene chemistry to membrane separations involving water transport through polymer materials. Polyphosphazenes,a hybrid organic and inorganic polymer,have been shown to be effective membranes in gas separation and liquid pervaporation applications. These characteristics are due to the inorganic nature of the backbone that provides these materials with remarkable chemical and mechanical stability.Additionally,phosphazene materials can be tailored to specific applications depending on the type of pendant groups that are attached to the phosphorus atoms of the backbone.
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