A Thermally Re-mendable Cross-Linked Polymeric Material

DOI Web Site 102 Citations
  • Xiangxu Chen
    Exotic Materials Institute and Department of Chemistry and Biochemistry,
  • Ajit Mal
    Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095, USA.
  • Kanji Ono
    Department of Materials Science and Engineering,
  • Matheus A. Dam
    Exotic Materials Institute and Department of Chemistry and Biochemistry,
  • Hongbin Shen
    Department of Materials Science, University of Southern California, Los Angeles, CA 90089, USA.
  • Steven R. Nutt
    Department of Materials Science, University of Southern California, Los Angeles, CA 90089, USA.
  • Fred Wudl
    Exotic Materials Institute and Department of Chemistry and Biochemistry,
  • Kevin Sheran
    Exotic Materials Institute and Department of Chemistry and Biochemistry,

Bibliographic Information

Published
2002-03
DOI
  • 10.1126/science.1065879
Publisher
American Association for the Advancement of Science (AAAS)

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Description

<jats:p>We have developed a transparent organic polymeric material that can repeatedly mend or “re-mend” itself under mild conditions. The material is a tough solid at room temperature and below with mechanical properties equaling those of commercial epoxy resins. At temperatures above 120°C, approximately 30% (as determined by solid-state nuclear magnetic resonance spectroscopy) of “intermonomer” linkages disconnect but then reconnect upon cooling, This process is fully reversible and can be used to restore a fractured part of the polymer multiple times, and it does not require additional ingredients such as a catalyst, additional monomer, or special surface treatment of the fractured interface.</jats:p>

Journal

  • Science

    Science 295 (5560), 1698-1702, 2002-03

    American Association for the Advancement of Science (AAAS)

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