Skip to main content
SpringerLink
Log in

Rheology of Blends of a Rodlike Polymer (PBO) and its Flexible Chain Analog

  • Published:
MRS Online Proceedings Library Aims and scope

Abstract

Rheological properties of isotropic solutions of rodlike poly(p-phenylene benzbisoxazole), PBO, flexible chain poly(2,5-benzoxazole), ABPBO, and their miscible blends in solution are described. Measurements include steady state properties (the viscosity and recoverable compliance as functions of shear rate), transient properties (the recoverable compliance), and dynamic mechanical properties (the loss and storage compliances as functions of frequency). The relaxation spectrum of the blends is broader than that for the rodlike chain, and tends to occur at longer times, reflecting a viscosity enhancement that occurs with the blends. The measured zero shear viscosities for rod and blend solutions are compared with predictions based on the model of Doi and Edwards.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. S. J. Krause, T. Haddock, G. E. Price, P. G. Lenhert, J. P. O’Brien, T. E. Helminiak and W. W. Adams, Polym. Sci.: Part B: Polym. Phys., 24, 1991 (1986)

    Article  CAS  Google Scholar 

  2. P. J. Flory, Macromol., 11, 1138 (1979)

    Article  Google Scholar 

  3. M. Doi and S. F. Edwards, The Theory of Polymer Dynamics (Clarendon Press, Oxford, 1986)

  4. S. Venkatramen, G. C. Berry and Y. Einaga, J. Polym. Sci.: Polym. Phys. Ed., 23, 1275 (1985)

    Google Scholar 

  5. G. C. Berry and C.-P. Wong, J. Polym. Sci.: Polym. Phys. Ed., 13, 1761 (1975)

    CAS  Google Scholar 

  6. G. C. Berry, J. 0. Park, D. W. Meitz, M. H. Birnboim and D. J. PlaKek, J. Polym. Sci.: Part B: Polym. Phys., 27, 273 (1989)

    Article  CAS  Google Scholar 

  7. G. C. Berry and D. J. Plazek, in Glass: Science and Technology, Vol. 3, Ed. by D. R. Uhlmann and N. J. Kreidl (Academic Press, New York, 1986), Chapter 6

  8. K. Nakamura, C.-P. Wong and G. C. Berry, J. Polym. Sci. Polym. Phya., 22, 1119 (1984)

    Article  CAS  Google Scholar 

  9. C. S. Kim, Ph.D. ThesiB, Carnegie Mellon University, Pittsburgh, PA (1988)

  10. B. Bernstein, E. A. Kearsley and L. J. Zapas, Trans. Soc. Rheol., 1, 391 (1963)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Dept. of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, 15213, Pittsburgh, PA, USA

    V. J. Sullivan & G. C. Berry

Authors
  1. V. J. Sullivan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. G. C. Berry
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sullivan, V.J., Berry, G.C. Rheology of Blends of a Rodlike Polymer (PBO) and its Flexible Chain Analog. MRS Online Proceedings Library 171, 141–146 (1989). https://doi.org/10.1557/PROC-171-141

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/PROC-171-141

Search

Navigation