Miscibility and Properties of Liquid Crystalline P-Acetoxy Benzoic Acid Copolyester / Polybutylene Terephthalate Blends

  • T. K. Kang
  • Y. Kim
  • W. J. Cho
  • C. S. Ha


Along with the development of new high-performance resins, new trends are being established in the processing of composites and polymer blends. However, the addition of rigid fillers into a polymeric matrix continues to have an adverse effect on the processability.1,2 To improve the mechanical properties of some polymers, generally inorganic fillers are compounded with the polymers. But the presence of solid fillers results in a dramatic increase in the melt viscosity. Thermotropic liquid crystalline polymers(LCP) have been studied because of then-inherent high stiffness and strength, high use temperature, excellent chemical resistance, low melt viscosity, and low coefficient of expansion. Because of these excellent properties, the blending of LCP with conventional polymers could result in materials that can be used as an alternative for short fiber reinforced thermoplastic composites; the in-situ composites have many potential advantages as compared with short fiber reinforced polymers3–9.


Shear Rate Short Fiber Complex Viscosity Liquid Crystalline Polymer Butylene Terephthalate 


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  1. 1.
    S. Metha and B.L. Deopura, J. Appl. Polym. Sci., 47:857 (1993).CrossRefGoogle Scholar
  2. 2.
    M. Amano and K. Nakagawa, Polymer, 28:263 (1987).CrossRefGoogle Scholar
  3. 3.
    M.R. Nobile, E. Amendola, L. Nocolais, D. Acierno, and C. Carfagna, Polym. Eng. Sci., 29(4):244 (1989).CrossRefGoogle Scholar
  4. 4.
    W.J. Jackson Jr. and R.F. Kuhfuss, J. Polym. Sci, Polym. Chem. Ed., 14:2043(1976); see also H.F. Kufuss and W.J. Jackson, US Patent 3,804,805 (1974).Google Scholar
  5. 5.
    M. Kimura, R.S. Porter, J. Polym. Sci. Polym. Phys. Ed, 22:1697 (1984).CrossRefGoogle Scholar
  6. 6.
    J.H. Chang and R.J. Farris, Polym. J., 27:780 (1995).CrossRefGoogle Scholar
  7. 7.
    J.H. Chang, B.W. Jo, and J.I. Jin, Polym. Eng. Sci, 35(29):1605 (1995).CrossRefGoogle Scholar
  8. 8.
    M. Paci, M. Liu, P.L. Magagnini, F.P. La Mantia and A. Valenza, Thennochimica Acta, 137:105 (1988).CrossRefGoogle Scholar
  9. 9.
    S. Metha and B.L. Deopura, J. Thermal Analysis, 40:597 (1993).CrossRefGoogle Scholar
  10. 10.
    A. Zaldau, E. Munoz, J.J. Pena and A. Santamaria, Polymer, 32(4):682 (1991).CrossRefGoogle Scholar
  11. 11.
    W.R. Krigbaum and F. Salaris, J. Polym. Sci. Polym. Phys. Ed., 16:883 (1978).CrossRefGoogle Scholar
  12. 12.
    H.J. Lader and W.R. Krigbaum, J. Polym. Sci. Polym. Phys. Ed., 17:1661 (1979).CrossRefGoogle Scholar
  13. 13.
    W. Meesiri, J. Polym. Sci. Polym. Phys. Ed., 20:719 (1982).CrossRefGoogle Scholar
  14. 14.
    K.F. Wissbrun, J. Rheol. 25, 619 (1981); Br. Polym. J. 12:163 (1980).CrossRefGoogle Scholar
  15. 15.
    R-E. Jerman and D.G. Baird, J. Rheol., 25:275 (1981).CrossRefGoogle Scholar
  16. 16.
    Z. Ophir abd Y. Ide, Poly. Eng. & Sci., 23:792 (1983).CrossRefGoogle Scholar
  17. 17.
    M.R. Mackley, F. Pinaud and G. Siekman, Polymer, 22:437 (1981).CrossRefGoogle Scholar
  18. 18.
    A. Zaldau, E. Munoz, J. J. Pena and A. Santamaria, Polymer, 32(4):682 (1991).CrossRefGoogle Scholar
  19. 19.
    C.D. Han and J.K. Kim, Polymer, 34:2553 (1984).Google Scholar
  20. 20.
    C.D. Han and J.K. Kim, Macromolecules, 22:4292 (1989).CrossRefGoogle Scholar
  21. 21.
    T.K. Kang, Y. Kim, W.J. Cho, and C.S. Ha, Polym.Eng. and Sci., 36(20):2525 (1996).CrossRefGoogle Scholar
  22. 22.
    J.K. Kim, M.E. Nichols, and R.E. Robertson, J. Polym. Sci., Part B: Polym. Phys., 32:887 (1994).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • T. K. Kang
    • 1
    • 2
  • Y. Kim
    • 1
  • W. J. Cho
    • 3
  • C. S. Ha
    • 1
  1. 1.Dept. of ChemistryPusan National UniversityPusanKorea
  2. 2.Daelim Industrial Co.,Ltd, Daeduk R&D CenterDaejonKorea
  3. 3.Dept. of Polymer Science and EngineeringPusan National UniversityPusanKorea

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