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Separation of Flexible-Chain Polymers on Macroporous and Finely Porous Ultrafiltration Membranes

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Abstract

The separation of flexible-chain polymers of various nature [poly(ethylene glycols), dextran, and poly(vinylpyrrolidone)] on macroporous and finely porous ultrafiltration membranes was studied. Experimental results were interpreted in terms of the deformation model, the concentration polarization model, and the alternative Lee–Howell model. A polarization control of ultrafiltration processes irrespective of polymer chain flexibility was proved from the differences in transport characteristics under two filtration regimes, the filtration with stirring and dead-end filtration.

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Authors and Affiliations

  1. National Academy of Sciences of Belarus, Institute of Physical Organic Chemistry, ul. Surganova 13, Minsk, 220072, Belarus

    V. P. Kasperchik, A. L. Yaskevich & A. V. Bil'dyukevich

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  1. V. P. Kasperchik
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  2. A. L. Yaskevich
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  3. A. V. Bil'dyukevich
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Kasperchik, V.P., Yaskevich, A.L. & Bil'dyukevich, A.V. Separation of Flexible-Chain Polymers on Macroporous and Finely Porous Ultrafiltration Membranes. Colloid Journal 65, 579–582 (2003). https://doi.org/10.1023/A:1026171722896

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