Limitations of the lifetime stabilization of supported liquid membrane by polyamides layers

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Wijers, M.C. and Wessling, M. and Strathmann, H. (1999) Limitations of the lifetime stabilization of supported liquid membrane by polyamides layers. Separation and Purification Technology, 17 (2). pp. 147-157. ISSN 1383-5866

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Abstract:This study deals with the potential and limitations of hydrophilic polyamides as stabilization layer material to improve the lifetime of supported liquid membranes. The polyamides are synthesized by the interfacial polymerization technique at the feed side of the supported liquid membrane. These layers show a high permeability for small ions, such as nitrate, sodium and silver, but a very low permeability for larger and bivalent ions, such as copper and zinc. Polyamide layers with acceptable permeabilities for bivalent cations could not be synthesized. Therefore, these polyamides are not the appropriate polymers to stabilize supported liquid membranes transporting bivalent cations.
Item Type:Article
Copyright:© 1999 Elsevier Science B.V.
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/11499
Official URL:http://dx.doi.org/10.1016/S1383-5866(99)00036-2
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