Journal of Materials Science

, Volume 36, Issue 3, pp 715–722

Thermal behaviour of poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) tri-block copolymers

  • J. H. An
  • H. S. Kim
  • D. J. Chung
  • D. S. Lee
  • Sanghyo Kim
Article

DOI: 10.1023/A:1004845109809

Cite this article as:
An, J.H., Kim, H.S., Chung, D.J. et al. Journal of Materials Science (2001) 36: 715. doi:10.1023/A:1004845109809

Abstract

Thermal behavior of poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) tri-block copolymers with different block lengths is examined. Thermal behavior of specimens crystallized under the isothermal and dynamic condition are characterized by DSC. Also WAXD and SAXS are employed to investigate the structure. Depending on the relative length of each block, tri-block copolymers can be classified into three groups: PCL dominant crystallization; PEG dominant crystallization; and the competing case. When the crystallization of PEG and PCL are competing, the crystallization of each block shows strong dependency on the thermal hystory of crystallization, leading to multiple melting and crystallization peaks. Also, the typical micro-phase separation of block copolymers seems to play an important role, competing with crystallization, especially under the dynamic crystallization condition.

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • J. H. An
    • 1
  • H. S. Kim
    • 1
  • D. J. Chung
    • 1
  • D. S. Lee
    • 1
  • Sanghyo Kim
    • 2
  1. 1.Department of Polymer Science and EngineeringSungKyunKwan UniversityJangan-gu, Kyunggi-doKorea
  2. 2.Department of ChemistryUniversity of SheffieldU K

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