Summary
Sorption and desorption isotherms of water vapor in a number of keratin substrates including excised human stratum corneum, guinea pig and neonatal rat corneum and human hair have been obtained and the data compared to the information available on wool. An attempt was made to analyze the data according to the BET and D'Arcy-Watt equations, Flory-Huggins polymer solution theory and Zimm's clustering function. The results suggest strong binding between the sorbate and keratins in the low relative vapor pressure range, reflecting a sorption process on primary reactive sites (Langmuir) which proceeds up to 0.2-0.3 relative vapor pressure. More confirmation is obtained from isosteric heat of sorption measurements. Extensive clustering and multilayer formation occur in the higher relative vapor pressure range.
Similar content being viewed by others
References
Scheuplein, R., I. Blank, Physiol. Rev.51, 702 (1971).
Vinson, L., E. Singer, Proc. Sci. Sec. Toil. Goods Assoc.46, 29 (1966).
Anderson, R. L. et al., Biopolymers12, 2789 (1973).
Wildnauer, R. et al., in: Applied Chemistry of Proteins, ACS, Monograph No. 145, p. 74, Ed.R. Baier (1975).
Kuntz, L, W. Kauzmann, Advances in Proteins28, 239 (1974).
Bull, H., K. Breese, Arch. Biochem. Biophys.137, 299 (1970).
Breuer, M., M. Kennerley, J. Colloid Interf. Sci.37, 124 (1971).
Barrie, J., In: Diffusion in Polymers, Ed.J. Crank and G. Park, (New York 1968).
Tanford, C., Physical Chemistry of Macromolecules (New York 1961).
Brunauer, S., P. Emmett, E. Teller, J. Amerc. Chem. Soc.60, 309 (1938).
D'Arcy, R., I. Watt, Trans. Farad. Soc.66, 1236 (1970).
Flory, P., J. Chem. Phys.10, 51 (1942).
Huggins, M., Ann. N.Y. Acad. Sci.43, 1 (1942).
Zimm, B., J. Chem. Phys.21, 934 (1953).
EI-Shimi, A., H. Princen, D. Risi, In: Applied Chemistry of Proteins, ACS Monograph No. 145, p. 125 (1975).
Smith, P., In: Humidity and Moisture, Vol. 3, p. 487 (New York 1965).
Rinehart, G., U. S. Army Electronics Command, Research and Development Technical Report, ECOM5332 (1972).
McEnaney, B., Trans. Farad. Soc. I70, 84 (1974).
Kligman, A., E. Christophers, Archs. Derm.88, 70 (1963).
Watt, I. et al., J. Text. Res.29, 975 (1959).
Everett, D., In: The Solid-Gas Interface, Ed.E. Flood, Vol. 2 (New York 1967).
Mooney, R. et al., J. Amer. Chem. Soc.74, 1307 (1952).
Scheuplein, R., Report No. AD 822 665 (Clearing House for Federal Scientific Technical Information Oct. 1966).
Bull, H. J. Amer. Chem. Soc.66, 1499 (1944).
Morrison, T., T. Hanlon, Proceedings 2nd International Congress of Surface Activity, Gas Solid Interface, p. 322 (London 1957).
Gee, G., Quart. Rev. Chem. Soc.1, 293 (1947).
Cutler, J., A. McLaren, J. Polymer Sci.3, 792 (1948).
Rowen, J., R. Simha, J. Phys. Colloid5, 921 (1949).
Taylor, N. et al., J. Phys. Chem.65,1810 (1961).
Zimm, B., J. Lundberg, J. Phys. Chem.60, 425 (1956).
Lundberg, J., J. Macromol. Sci. PhysicsB3, 711 (1969).
Rogers, C. et al., J. Polymer Sci.45, 61 (1960).
Barrie, J., B. Platt, J. Polymer Sci.4, 303 (1963).
Starkweather, H., J. Polymer Sci.B1, 133 (1963).
Starkweather, H., Personal Communications.
Rosenbaum, S., J. Polymer Sci. Part C., No. 31, 45 (1970).
Author information
Authors and Affiliations
Additional information
With 10 figures
Rights and permissions
About this article
Cite this article
El-Sbimi, A.F., Princen, H.M. Water vapor sorption and desorption behavior of some keratins. Colloid & Polymer Sci 256, 105–114 (1978). https://doi.org/10.1007/BF01679167
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01679167