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Talanta. 1997 Oct;44(10):1865-71. doi: 10.1016/S0039-9140(97)00082-9.

Extraction of uranium from aqueous solution by phosphonic acid-imbedded polyurethane foam.

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Department of Chemistry, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada.


Phenylphosphonic acid was imbedded into the matrix of the polyurethane foam during the fabrication process of the polymer. The extraction of uranium by phosphonic acid-imbedded polyurethane foam and blank polyurethane (i.e., foam without phosphonic acid functional groups) was investigated. Phosphonic acid-imbedded foam showed superior extractability of uranium from solutions with pH=7.0+/-1.5 over a wide range of temperature.

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