The adsorption and permeation of metal ion mixtures were examined for the membrane of poly(3-O-vinylbenzyl gluconate-co-acrylonitrile). The membrane is found to be effective for permeative separation of metal ions. For the Cu/Cd combination, especially, Cu ion was selectively adsorbed and permeated in a neutral aqueous solution. The high selectivity and the high permeation rate are discussed in connection with the chelate formation and the hydrophilicity of ion channel.
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Kobayashi, K., Sumitomo, H. Permeative separation of metal ions through the polymer membrane containing gluconate group. Polymer Bulletin 1, 121–125 (1978). https://doi.org/10.1007/BF00255725
- Aqueous Solution
- Material Processing
- High Selectivity