Polymer Blends pp 397-405 | Cite as

The Phase Structure of Poly(N-Vinylcarbazole)-Polycarbonate Blends as Studied by Thermally Stimulated Currents and Thermo-Optical Analysis

  • Jacek Ulanski
  • Marian Kryszewski


The phase structure of poly(N-vinylcarbazole) — polycarbonate blends for applications in electrophotography was investigated. The results of Thermally Stimulated Currents measurements are interpreted in terms of polymers miscibility. It is deduced that PVK - PC mixtures are not homogeneous, however the blends did not show inhomogeneity in polarizing microscope. This conclusion is confirmed by Thermo-optical Analysis which indicated the appearance of two glass transitions in the mixtures. On the other hand, the measurements of the Lower Critical Solution Temperature show that the phase separation occurs in the samples in the temperature range of 210– –240°C depending on PVK content.


Beach Macromolecule Polycarbonate Chlorobenzene 


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  1. 1.
    K.H. Nicholas and J. Woods, Brit. J. Appl. Phys., 15, 783 (1964)CrossRefGoogle Scholar
  2. 2.
    A.R. Shultz and B.M. Beach, Macromolecules, 7, 902 (1974)CrossRefGoogle Scholar
  3. 3.
    J. Jeszka, J. Ulański and M. Kryszewski, J. Eletrostatics, in press.Google Scholar
  4. 4.
    M. Zieliński and M. Samoć, J. Phys. D., 10, L 105 (1977)CrossRefGoogle Scholar
  5. 5.
    R.E. Bernstein, C.A. Cruz, D.R. Paul and J.W. Barlow, Macromolecules, 10, 681 (1977)CrossRefGoogle Scholar
  6. 6.
    J. UlaAski, W. Rybka and M. Kryszewski, to be publishedGoogle Scholar
  7. 7.
    J. Van Turnhout “Thermally Stimulated Discharge of Polymer Electrets” Elsevier Pub., Amsterdam (1974)Google Scholar
  8. 8.
    D. Patterson and A. Robard, Macromolecules, 11, 690 (1978)CrossRefGoogle Scholar
  9. 9.
    E. Nolley, D.R. Paul and J.W. Barlow, J. Appl. Polym. Sci. 23, 623 (1979).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • Jacek Ulanski
    • 1
  • Marian Kryszewski
    • 1
  1. 1.Institute of PolymersTechnical UniversityLódźPoland

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