Advertisement

Macromolecular Research

, Volume 15, Issue 7, pp 640–645 | Cite as

Miscibility of branched polycarbonate blends with poly(ethylene-co-1,4-dimethyl cyclohexane terephthalate) copolyesters

  • Jeong Oh Song
  • Mi Young Jeon
  • Chang Keun Kim
Article

Abstract

The phase behavior of branched polycarbonate (BPC) blends with poly(ethylene terephthalate-co-1,4-dimethyl cyclohexane terephthalate) copolyesters (PECT), as well as their rheological properties, were assessed. Even though BPC blends with PECT prepared by solvent casting proved to be immiscible, BPC and PECT copolyesters containing 1,4-dimethyl cyclohexane (CHDM) from 32 to 80 mole% formed homogeneous mixtures upon heating. The homogenization temperatures of the blends decreased with increasing CHDM content in PECT. The interaction energies of the BPC-PECT pairs calculated from the phase boundary in accordance with the lattice-fluid theory were positive and also decreased with increasing CHDM content in PECT. It was shown that the phase homogenization of these blends occurs upon heating when the combinatorial entropy term, which is favorable for miscibility, overcomes unfavorable energetic terms at elevated temperatures. A novel product, which is not limited by the drawbacks of linear polycarbonate (PC) and evidences processability superior to that of the PC/PECT blends, can be developed via the blending of BPC and PECT.

Keywords

branched polycarbonate poly(ethylene-co-1,4-dimethyl cyclohexane terephthalate) copolyesters upper critical solution temperature interaction energy processability transparency 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    D. Freitag, U. Grigo, P. R. Muller, and W. Nouvertne,Polycarbonates in Encyclopedia of Polymer Science and Engineering, H. F. Mark, N. M. Bikales, C. G. Overberger, and G. Menges, Eds., 2nd ed., John Wiley & Sons, 1985, Vol. 11, p 648.Google Scholar
  2. (2).
    R. N. Mohn, D. R. Paul, J. W. Barlow, and C. A. CruzJ. Appl. Polym. Sci.,23, 575 (1979).CrossRefGoogle Scholar
  3. (3).
    T. R. Nassar, D. R. Paul, and J. W. Barlow,J. Appl. Polym. Sci.,23, 85 (1979).CrossRefGoogle Scholar
  4. (4).
    C. A. Cruz, D. R. Paul, and J. W. Barlow,J. Appl. Polym. Sci. 23, 589 (1979).CrossRefGoogle Scholar
  5. (5).
    C. A. Cruz, D. R. Paul, and J. W. Barlow,J. Appl. Polym. Sci.,23, 2101 (1979).CrossRefGoogle Scholar
  6. (6).
    C. A. Cruz, D. R. Paul, and J. W. Barlow,Macromolecules,12, 726 (1979).CrossRefGoogle Scholar
  7. (7).
    W. A. Smith, J. W. Barlow, and D. R. Paul,J. Appl. Polym. Sci.,26, 4233 (1981).CrossRefGoogle Scholar
  8. (8).
    R. Murff, J. W. Barlow, and D. R. Paul,J. Appl. Polym. Sci.,29, 3231 (1984).CrossRefGoogle Scholar
  9. (9).
    J. M. Jonsa and R. S. Porter,Macromolecules,19, 1946 (1986)CrossRefGoogle Scholar
  10. (10).
    C. H. Lai, J. W. Barlow, and D. R. Paul,Macromolecules,22, 374 (1989).CrossRefGoogle Scholar
  11. (11).
    T. S. Ellis,Macromolecules,28, 1882 (1995).CrossRefGoogle Scholar
  12. (12).
    W. Brostow, M. Hess, B. L. Lopez, and T. Sterzynski,Polymer,37, 1551 (1996).CrossRefGoogle Scholar
  13. (13).
    V. N. Ignatov, C. Carraro, V. Tartari, R. Pippa, M. Scapin, F. Pilati, C. Berti, M. Tosseli, and M. Fiorini,Polymer,38, 195 (1997).CrossRefGoogle Scholar
  14. (14).
    V. N. Ignatov, C. Carraro, V. Tartari, R. Pippa, M. Scapin, F. Pilati, C. Berti, M. Tosseli, and M. Fiorini,Polymer,38, 201 (1997).CrossRefGoogle Scholar
  15. (15).
    G. Montaudo, C. Poglisi, and F. Samperi,Macromolecules,31, 650 (1998).CrossRefGoogle Scholar
  16. (16).
    T. S. Ellis,Polymer,39, 4741 (1998).CrossRefGoogle Scholar
  17. (17).
    Y. Kong and J. N. Hay,Polymer,43, 1805 (2002).CrossRefGoogle Scholar
  18. (18).
    C. K. Samios and N. K. Kalfoglou,Polymer,41, 5759 (2000).CrossRefGoogle Scholar
  19. (19).
    V. S. Shah, D. R. Paul, and J. W. Barlow,J. Appl. Polym. Sci.,32, 3863 (1986).CrossRefGoogle Scholar
  20. (20).
    D. R. Paul and J. W. Barlow, inPolymer Science and Technology, Polymer Alloys II, D. Klempner and K. C. Frisch, Eds., Plemum Press, New York, 1977, Vol. 11, p 239.Google Scholar
  21. (21).
    S. Spall, A. A. Goodwin, M. D. Zipper, and G. P. Simon,J. Polym. Sci.; Part B,34, 2419 (1996).CrossRefGoogle Scholar
  22. (22).
    A. K. Kalkar, A. A. Deshpande, and M. J. Kulkarni,J. Appl. Polym. Sci.,106, 34 (2007).CrossRefGoogle Scholar
  23. (23).
    J. K. Lee, J. E. Im, J. W. Park, H. Y. Won, and K. H. Lee,J. Appl. Polym. Sci.,99, 2220 (2006).CrossRefGoogle Scholar
  24. (24).
    B. Yin, Y. Zhao, W. Yang, M. Pan, and M. Yang,Polymer,47, 8237 (2006).CrossRefGoogle Scholar
  25. (25).
    L. W. Kim, M. Y. Jeon, and C. K. Kim,Ind. Eng. Chem. Res.,45, 8921 (2006).CrossRefGoogle Scholar
  26. (26).
    J. H. Kim, M. S. Hwang, and C. K. Kim,Macromolecules,37, 2287 (2004).CrossRefGoogle Scholar
  27. (27).
    C. K. Kim and D. R. Paul,Polymer,33, 4929 (1992).CrossRefGoogle Scholar
  28. (28).
    M. Nishimoto, H. Keskkula, and D. R. Paul,Polymer,32, 272 (1991).CrossRefGoogle Scholar
  29. (29).
    T. A. Callaghan and D. R. Paul,J. Polym. Sci.; Part B,32, 1813 (1994).CrossRefGoogle Scholar
  30. (30).
    J. H. Kim, J. E. Yoo, and C. K. Kim,Macromol. Res.,10, 209 (2002).CrossRefGoogle Scholar
  31. (31).
    J. E. Yoo, Y. Kim, C. K. Kim, and J. W. Lee,Macromol. Res.,11, 303 (2003).CrossRefGoogle Scholar
  32. (32).
    I. C. Sanchez and R. H. Lacombe,J. Phys. Chem.,80, 2568 (1976).CrossRefGoogle Scholar
  33. (33).
    I. C. Sanchez and R. H. Lacombe,J. Phys. Chem.,80, 2352 (1976).CrossRefGoogle Scholar
  34. (34).
    I. C. Sanchez and R. H. Lacombe,Macromolecules,11, 1145 (1978).CrossRefGoogle Scholar
  35. (35).
    I. C. Sanchez and I. C. Polymer,Phase Separation in Encyclopedia of Physical Science and Technology, Academic Press Academic Press, New York, 1987, Vol. XI, p 1.Google Scholar
  36. (36).
    G. R. Brannock and D. R. Paul,Macromolcules,23, 5240 (1990).CrossRefGoogle Scholar

Copyright information

© The Polymer Society of Korea and Springer 2007

Authors and Affiliations

  • Jeong Oh Song
    • 1
  • Mi Young Jeon
    • 1
  • Chang Keun Kim
    • 1
  1. 1.School of Chemical Engineering and Materials ScienceChung-Ang UniversitySeoulKorea

Personalised recommendations