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Article Dans Une Revue International Journal of Biological Macromolecules Année : 2019

Thermally reversible nanocellulose hydrogels synthesized via the furan/maleimide Diels-Alder click reaction in water

Ricardo Klaus Kramer
  • Fonction : Auteur
Antonio José Felix Carvalho
  • Fonction : Auteur
Alessandro Gandini
  • Fonction : Auteur

Résumé

The study deals with the synthesis of thermally reversible hydrogels from modified cellulose nanofibers via the Diels-Alder “click” reaction in an aqueous medium. “Never-dried” cellulose fibres derived from hardwood were submitted to shearing and surface TEMPO-oxidation before being modified with furfurylamine. The ensuing pendant furan moieties were reacted with a water-soluble bismaleimide via Diels-Alder coupling at 65 °C to produce a hydrogel, whose deconstruction was induced by the corresponding retro-Diels-Alder reaction carried out at 95 °C. Differential scanning calorimetry and rheological measurement were used to characterize the hydrogels. These aqueous cellulosic materials should provide original applications in such areas as strong paper-based artefacts and biocompatible gels.
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Dates et versions

hal-04123252 , version 1 (09-06-2023)

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Citer

Ricardo Klaus Kramer, Mohamed Naceur Belgacem, Antonio José Felix Carvalho, Alessandro Gandini. Thermally reversible nanocellulose hydrogels synthesized via the furan/maleimide Diels-Alder click reaction in water. International Journal of Biological Macromolecules, 2019, 141, pp.493-498. ⟨10.1016/j.ijbiomac.2019.09.027⟩. ⟨hal-04123252⟩

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