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Synthesis and Characterization of Hydroxy-telechelic Four-arm Star-shaped Oligo(tetrahydrofuran), Their Crosslinking, and Thermomechanical Investigation of the Poymer Network

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Abstract

Here the synthesis of hydroxy-telechelic four-arm star-shaped oligotetrahydrofuran (4PTHF) with controllable molecular weight was explored, which was perfomed as living cationic ring-opening polymerization of THF using pentaerythritol and trifluoromethanesulfonicanhydride as initiation system. The molecular weights of the 4PTHF were a function of the reaction time. A polymer network was prepared from the hydroxy-telechelic 4PTHF precursor by crosslinking with diisocyanate and the shape-memory properties were determined. High values for Rf and Rr > 98% were obtained even at high programmed elongations, which suggest the 4PTHF-network as a promising shape-memory material. These materials might have a great potential, as the upscaling of synthesis could be successfully demonstrated.

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Acknowledgments

K. K. Yang acknowledges financial support by the DAAD-CSC academic exchange program (GR6211-A1106443).

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Authors and Affiliations

  1. Center for Biomaterial Development and Berlin Brandenburg Center for Regenerative Therapies (BCRT), Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513, Teltow, Germany

    K. K. Yang, J. Zotzmann, A. Lendlein & M. Behl

  2. National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu, 610064, P. R. China

    K. K. Yang

  3. Tianjin University-Helmholtz-Zentrum Geesthacht, Joint Laboratory for Biomaterials and Regenerative Medicine, Kantstr. 55, Teltow, Germany

    A. Lendlein & M. Behl

Authors
  1. K. K. Yang
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  2. J. Zotzmann
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  3. A. Lendlein
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  4. M. Behl
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Yang, K.K., Zotzmann, J., Lendlein, A. et al. Synthesis and Characterization of Hydroxy-telechelic Four-arm Star-shaped Oligo(tetrahydrofuran), Their Crosslinking, and Thermomechanical Investigation of the Poymer Network. MRS Online Proceedings Library 1403, 190–195 (2012). https://doi.org/10.1557/opl.2012.453

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  • DOI: https://doi.org/10.1557/opl.2012.453

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