Skip to main content
SpringerLink
Log in

Development of lamellar morphology in poly(ethylene terephthalate)/polycarbonate blends

  • Published:
Macromolecular Research Aims and scope Submit manuscript

Abstract

We have studied the lamellar-level morphology of poly(ethylene terephthalate) (PET)/polycarbonate (PC) blends using small-angle X-ray scattering (SAXS). Measurements were made as a function of the holding time in the melt. We determined the morphological parameters at the lamellar level by correlation function analysis of the SAXS data. An increased amorphous layer thickness was identified in the blend, indicating that some PC was incorporated into the interlamellar regions of PET during crystallization. The blend also exhibits a larger lamellar crystalline thickness (l c ) than that of pure PET. A possible reason for the increase inl c is that the inclusion of the PC molecules in the interlamellar regions causes an increase in the surface free energy of folding. At the early stage of isothermal crystallization, we observed a rapid drop in the value ofl c in the blend; this finding indicates that a relatively large fraction of secondary crystals form during the primary crystallization. In contrast, the value ofl c for the sample that underwent a prolonged holding time increased with time in the secondary crystallization-dominant regime; this observation suggests that the disruption of chain periodicity, which results from transesterification between the two polymers, favors the development of fringed micellar crystals that have larger values ofl c , rather than the development of normal chain-folded crystals.

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.

Institutional subscriptions

Similar content being viewed by others

References

  1. S. Talibuddin, L. Wu, J. Runt, and J. S. Lin,Macromolecules,29, 7527 (1996).

    Article  CAS  Google Scholar 

  2. H. L. Chen, L. J. Li, and T. L. Lin,Macromolecules,31, 2255 (1998).

    Article  CAS  Google Scholar 

  3. H. L. Chen and M. S. Hsiao,Macromolecules,31, 6579 (1998).

    Article  CAS  Google Scholar 

  4. F. Yeh, B. S. Hsiao, B. Chu, B. B. Sauer, and E. A. Flexman,J. Polym. Sci., Polym. Phys. Ed.,37, 3115 (1999).

    Article  CAS  Google Scholar 

  5. N. Inaba, K. Sato, S. Suzuki, and T. Hashimoto,Macromolecules,19, 1690 (1986).

    Article  CAS  Google Scholar 

  6. N. Inaba, T. Yamada, S. Suzuki, and T. Hashimoto,Macromolecules,21, 407 (1988).

    Article  CAS  Google Scholar 

  7. H. L. Chen, J. C. Hwang, J. M. Yang, and R. C. Wang,Polymer,39, 6983 (1998).

    Article  CAS  Google Scholar 

  8. S. Nojima, K. Sato, and T. Ashida,Macromolecules,24, 942 (1991).

    Article  CAS  Google Scholar 

  9. M. Okamoto and T. Kotaka,Polymer,38, 1357(1997).

    Article  CAS  Google Scholar 

  10. H. J. Bang, J. K. Lee, and K. H. Lee,J. Polym. Sci., Polym. Phys. Ed.,38, 2625 (2000).

    Article  CAS  Google Scholar 

  11. J. K. Lee, J. E. Im, and K. H. Lee,Euro. Polym. J., submitted (2003).

  12. M. Garcia, J. I. Eguiazabal, and J. Nazabal,J. Appl. Polym. Sci.,81, 121 (2001).

    Article  CAS  Google Scholar 

  13. Y. Kong and J. N. Hay,Polymer,43, 1805 (2002).

    Article  CAS  Google Scholar 

  14. S. Buchner, D. Wiswe, and H. G. Zachmann,Polymer,30, 480 (1989).

    Article  CAS  Google Scholar 

  15. G. R. Strobl and M. Schneider,J. Polym. Sci., Polym. Phys. Ed.,18, 1343 (1980).

    Article  CAS  Google Scholar 

  16. R. K. Verma, V. Velikov, R. G. Kander, H. Marand, B. Chu, and B. S. Hsiao,Polymer,37, 5357 (1996).

    Article  CAS  Google Scholar 

  17. R. Verma, H. Marand, and B. Hsiao,Macromolecules,29, 7767 (1996).

    Article  CAS  Google Scholar 

  18. W. Wang, J. M. Schultz, and B. S. Hsiao,Macromolecules,30, 4544 (1997).

    Article  CAS  Google Scholar 

  19. J. K. Lee, H. J. Bang, and K. H. Lee,J. Polym. Sci., Polym. Phys. Ed.,40, 317 (2002).

    Article  CAS  Google Scholar 

  20. E. Martuscelli,Polym. Eng. Sci.,24, 563 (1984).

    Article  CAS  Google Scholar 

  21. B. S. Hsiao, I. Y. Chang, and B. B. Sauer,Polymer,32, 27 (1991).

    Article  Google Scholar 

  22. R. S. Stein and W. J. Chu,Polym. Sci. A-2,8, 1137 (1970).

    Article  CAS  Google Scholar 

  23. D. Y. Yoon and R. S. Stein,J. Polym. Sci., Polym. Phys. Ed.,12, 763 (1974).

    Article  CAS  Google Scholar 

  24. A. Lilaonitkul, J. C. West, and S. L. Cooper,J. Macromol. Sci. Phys. B,12, 563 (1976).

    Google Scholar 

  25. M. Matsuo, K. Geshi, A. Moriyama, and C. Sawatari,Macromolecules,15, 193 (1982).

    Article  CAS  Google Scholar 

  26. G. Elsner, H. G. Zachmann, and J. R. Milch,Makromol. Chem.,182, 657 (1981).

    Article  CAS  Google Scholar 

  27. A. M. Jonas, T. P. Russell, and D. Y. Yoon,Macromolecules,28, 8491 (1993).

    Article  Google Scholar 

  28. K. N. Kruger and H. G. Zachmann,Macromolecules,26, 5202 (1993).

    Article  Google Scholar 

  29. R. A. Phillips, Z. G. Wang, and B. S. Hsiao,ACS PMSE Proc.,79, 295 (1998).

    CAS  Google Scholar 

  30. A. Alizadeh, L. Richardson, J. Xu, S. McCartney, H. Marand, Y. W. Cheung, and S. Chum,Macromolecules,32, 6221 (1999).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Center for Advanced Functional Polymers, School of Chemical Science and Engineering, Inha University, 402-751, Inchon, Korea

    Jong Kwan Lee, Jeong Eun Im & Kwang Hee Lee

Authors
  1. Jong Kwan Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jeong Eun Im
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Kwang Hee Lee
    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

Lee, J.K., Im, J.E. & Lee, K.H. Development of lamellar morphology in poly(ethylene terephthalate)/polycarbonate blends. Macromol. Res. 12, 172–177 (2004). https://doi.org/10.1007/BF03218385

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03218385

Keywords

Search

Navigation