Summary
The relationship between the logarithmic hydraulic permeability and the reciprocal absolute temperature for a novel hydrophilic polyamide membrane peculiarly refracted at about 27°C, which was inferred to be some kind of transition point of the poly(BOL) in water. Some participation mode of water molecules in polar sites, including inter- and intramolecular hydrogen bonds through amide and ether groups, along poly(BOL) chains may vary discontinuously at the temperature.
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Sumitomo, H., Hashimoto, K. & Ohyama, T. Peculiar transition observed on the temperature dependence of water permeability of a novel hydrophilic polyamide membrane. Polymer Bulletin 1, 635–639 (1979). https://doi.org/10.1007/BF00254143
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DOI: https://doi.org/10.1007/BF00254143