Summary
Several existing data of non-linear viscoelasticity of amorphous polymers aboveT g are here interpreted by assuming that the free volume changes during the motion. Equations of a stress-temperature equivalence are suggested which favorably compare with the data. It is also shown that the volume variations are sufficiently small to have escaped observation.
Zusammenfassung
Verschiedene vorliegende Meßergebnisse bezüglich des nicht-linear viskoelastischen Verhaltens von amorphen Polymeren oberhalbT g werden mit Hilfe der Annahme interpretiert, daß das freie Volumen sich bei der Bewegung ändert. Es werden dazu Gleichungen für die Spannungs-Temperatur-Äquivalenz in Ansatz gebracht, die eine gute Anpassung an die Meßdaten ergeben. Ebenfalls wird gezeigt, daß die Volumenänderungen hierbei so klein bleiben, daß sie sich der Beobachtung haben entziehen können.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Yamamoto, M. J. Phys. Soc. Japan11, 413 (1956);12, 1148 (1957);13, 1200 (1958).
Kaye, A. Br. J. Appl. Phys.17, 803 (1966).
Carreau, P. J. Trans. Soc. Rheol.16, 99 (1972).
Acierno, D., F. P. La Mantia, G. Marrucci, G. Titomanlio J. Non-Newt. Fluid Mech.1, 125 (1976).
Ferry, J. D., Viscoelastic Properties of Polymers (New York 1970).
Titomanlio, G., G. Rizzo, Proceedings of the VII. International Congress on Rheology, Gothenburg, Sweden, August 23–27, 1976; submitted to Polym. Eng. Sci.
Bueche, F., Physical Properties of Polymers (New York 1962).
Osaki, K., M. Fukuda, M. Kurata J. Polymer Sci., Phys. Ed.13, 775 (1975).
Hudson, N. E., J. Ferguson Trans. Soc. Rheol.20, 265 (1976).
Doolittle, A. K. J. Appl. Phys.22, 1471 (1951).
Litt, M. H. Trans. Soc. Rheol.20, 47 (1976).
Simha, R., R. F. Boyer J. Chem. Phys.37, 1003 (1962).
Tobolsky, A. V., H. F. Mark, Polymer Science and Materials (New York 1971).
Lodge, A. S. Trans. Faraday Soc.52, 120 (1956).
Lodge, A. S., Yeen-Jing Wu Rheol. Acta10, 539 (1971).
Marrucci, G. Trans. Soc. Rheol.16, 321 (1972).
Sarti, G. C., G. Marrucci Chem. Eng. Sci.28, 1053 (1972).
Kovacs, A. J. Adv. Polymer Sci.3, 394 (1964).
Takaki, T., D. C. Bogue J. Appl. Polymer Sci.19, 419 (1975).
Fox, Jr., T.G., P. J. Flory J. Appl. Phys.21, 581 (1950).
Acierno, D., F. P. La Mantia, B. de Cindio, L. Nicodemo, Trans. Soc. Rheol., in press.
Furuta, J., V. M. Lobe, J. L. White J. Non-Newt. Fluid Mech.1, 207 (1976).
Osaki, K., S. Ohta, M. Fukuda, M. Kurata J. Polymer Sci.14, 1701 (1976).
Kelley, F. N., F. Bueche J. Polymer Sci.50, 549 (1961).
Author information
Authors and Affiliations
Additional information
With 9 figures
Rights and permissions
About this article
Cite this article
La Mantia, F.P. Non linear viscoelasticity of polymeric liquids interpreted by means of a stress dependence of free volume. Rheol Acta 16, 302–308 (1977). https://doi.org/10.1007/BF01523740
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01523740