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The description of the rheological behaviour of concentrated polymer solution

Discussion of some theological properties of polyisobutylene concentrated solutions

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  • Polymer Science
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Summary

On the basis of the idea of the free activation energy of formation and disappearing of temporary junctions and their rupture age a theological equation of state in the integral representation is proposed. The equation for viscosity and the first normal stress function by stationary shear flow allow the evaluation of these parameters and the comparison with the experiment. The experimental results seem to approve the concept of the free activation energy and its changes by stationary shearing flow.

Zusammenfassung

Aufgrund reaktionskinetischer Vorstellungen über Neubildung und Verschwinden zeitweiliger Verknüpfungsstellen und ihre Lebensdauer wurde eine rheologische Zustandsgleichung in der integralen Darstellung vorgeschlagen. Die aufgrund dieser Zustandsgleichung abgeleiteten Formeln für die Viskosität und die erste Normalspannungsdifferenz bei stationärem Fließen erlauben den Vergleich mit dem Experiment. Ergebnisse über Messungen an Polyisobutylen-Lösungen scheinen die Überlegungen zu bestätigen.

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Literature

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Authors and Affiliations

  1. Institut für Makromolekulare Chemie der Technischen Hochschule Darmstadt, Sonderforschungsbereich 41 Alexanderstraße 24, D-6100, Darmstadt

    S. Krozer & E. Gruber

Authors
  1. S. Krozer
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  2. E. Gruber
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Additional information

With 4 figures

Reported in part on the VII International Congress on Rheology, Göteborg, 23–27 August 1976.

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Krozer, S., Gruber, E. The description of the rheological behaviour of concentrated polymer solution. Colloid & Polymer Sci 256, 535–540 (1978). https://doi.org/10.1007/BF01639197

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  • DOI: https://doi.org/10.1007/BF01639197

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