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Surface induced crystallization of PCL on oriented PE substrates: epitaxy and transcrystallization

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Abstract.

The crystallization behavior of polycaprolactone (PCL) on the highly oriented polyethylene (PE) substrates was studied by means of optical microscopy (OM), transmission electron microscopy (TEM), and electron diffraction (ED). The results of both OM and TEM observations indicate that PE is a very active nucleation agent for PCL. While a transcrystalline zone of PCL is observed in the boundary area of the PE substrate by optical microscopy, both heteroepitaxy and transcrystallization of PCL on the PE substrates are recognized by TEM observations. It was further found that the transcrystalline zone of PCL in the thin films is composed of two different kinds of crystals, i. e. the edge-on crystalline lamellae at the interface, and the further grown flat-on crystals. In thicker samples, a semi-period lamellar twisting occurs during growth of the transcrystalline crystals.

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Acknowledgment.

The financial support of the Deutsche Forschungsgemeinschaft (DFG) and National Natural Science Foundation of China (No.20244003), as well as the financial support of the hundred talents program are gratefully acknowledged.

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Authors and Affiliations

  1. State Key Laboratory of Polymer Physics & Chemistry, Center for Macromolecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, 100080, Bei**g, P. R. China

    Jichun Liu, Huihui Li & Shouke Yan

  2. Institute of Materials Science, Department of Chemical Engineering, University of Dortmund, 44221 , Dortmund, Germany

    Qiao **ao & Jürgen Petermann

Authors
  1. Jichun Liu
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  2. Huihui Li
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  3. Shouke Yan
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  4. Qiao **ao
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  5. Jürgen Petermann
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Corresponding author

Correspondence to Shouke Yan.

Additional information

J. Liu and H. Li are Ph.D. candidates of the Chinese Academy of Sciences

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Liu, J., Li, H., Yan, S. et al. Surface induced crystallization of PCL on oriented PE substrates: epitaxy and transcrystallization. Colloid Polym Sci 281, 601–607 (2003). https://doi.org/10.1007/s00396-002-0810-0

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  • DOI: https://doi.org/10.1007/s00396-002-0810-0

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