Reversibly crosslinked self-healing PCL-based networks

Authors

  • Hichem Mallek,

    1. Université de Lyon, F-42023, Saint-Etienne, France
    2. CNRS, UMR 5223, Ingénierie des Matériaux Polymères, F-42023, Saint-Etienne, France
    3. Université de Saint-Etienne, Jean Monnet, F-42023, Saint-Etienne, France
    4. Laboratoire de Chimie appliquée HCGP, Faculté des Sciences, Université de Sfax, 3000 Sfax, Tunisia
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  • Corinne Jegat,

    Corresponding author
    1. Université de Lyon, F-42023, Saint-Etienne, France
    2. CNRS, UMR 5223, Ingénierie des Matériaux Polymères, F-42023, Saint-Etienne, France
    3. Université de Saint-Etienne, Jean Monnet, F-42023, Saint-Etienne, France
    • Université de Lyon, F-42023, Saint-Etienne, France
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  • Nathalie Mignard,

    1. Université de Lyon, F-42023, Saint-Etienne, France
    2. CNRS, UMR 5223, Ingénierie des Matériaux Polymères, F-42023, Saint-Etienne, France
    3. Université de Saint-Etienne, Jean Monnet, F-42023, Saint-Etienne, France
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  • Majdi Abid,

    1. Laboratoire de Chimie appliquée HCGP, Faculté des Sciences, Université de Sfax, 3000 Sfax, Tunisia
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  • Souhir Abid,

    1. Laboratoire de Chimie appliquée HCGP, Faculté des Sciences, Université de Sfax, 3000 Sfax, Tunisia
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  • Mohamed Taha

    1. Université de Lyon, F-42023, Saint-Etienne, France
    2. CNRS, UMR 5223, Ingénierie des Matériaux Polymères, F-42023, Saint-Etienne, France
    3. Université de Saint-Etienne, Jean Monnet, F-42023, Saint-Etienne, France
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Abstract

Poly(ε-caprolactone) (PCL)-based thermoreversible networks with self-healing properties were prepared through Diels–Alder (DA) and retro-DA reactions. Bis- or Tris-maleimide compounds and a series of copolymer(caprolactone-diene) PCLXFY (X: degree of polymerization and Y: furan-average functionality) with Y between 2.4 and 4.9 were used. The successive sequences of formation and dissociation of polycaprolactone networks via DA and retro-DA reactions were observed repeatedly by dynamic mechanical analyses (DMA) and their gel-temperatures determined. The cross-linking densities, thermal properties, and thermal reversibility of the PCLXFY/multimaleimide polymers have been modulated by the structure and functionalities of the used diene and dienophile moieties. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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