Abstract
IN a recent paper1 it has been shown that ‘Ultrafein filters allerfeinst’, which the manufacturers state are composed of an unnamed cellulose ester, can be used to measure quite low number average molecular weights (M̄ n). We have now found that membranes having similar osmotic properties can, in fact, be prepared from cellulose acetate.
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References
Vaughan, M. F., J. Polymer Sci. (in the press).
Elford, W. J., Trans. Farad. Soc., 33, 1094 (1937).
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VAUGHAN, M. Cellulose Acetate Membranes suitable for Osmotic Measurements. Nature 183, 43–44 (1959). https://doi.org/10.1038/183043b0
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DOI: https://doi.org/10.1038/183043b0
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