Abstract
The membrane permeability of aqueous solutions of proteins (albumin, hemoglobin, amylase, invertase), sugars (glucose, raffinose), and their mixtures was investigated for poly(methacrylic acid) (membranes treated and untreated with poly(ethylene glycol) (PEG). It was found that the PEG-treated membranes allow a much faster permeation of these macro- and microsolutes as well as water than untreated ones, but that solute rejection depends largely on the molecular weight of the solute substance. Enhanced permeation of fluid through PEG-treated membranes is caused by mechanochemical contraction of the network chains which tend to expand the micropores of the membrane.
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Y. Osada and Y. Takeuchi, J. Polym. Sci., Polym. Lett. Ed., 19, 303 (1981).
Y. Osada and Y. Saito, Makromol. Chem., 176, 2761 (1975).
Y. Osada, J. Polym. Sci., Polym. Chem. Ed., 15, 255 (1977).
Y. Osada and M. Sato, Polymer, 21, 1057 (1980).
Y. Osada, J. Polym. Sci., Polym. Chem. Ed., 17, 3485 (1979).
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Osada, Y., Takeuchi, Y. Protein and Sugar Separation by Mechanochemical Membrane Having “Chemical Valve” Function. Polym J 15, 279–284 (1983). https://doi.org/10.1295/polymj.15.279
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DOI: https://doi.org/10.1295/polymj.15.279