Volume 133, Issue 45
Article

Polylactic acid bioconjugated with glutathione: Thermosensitive self-healed networks

Dalila Djidi

Dalila Djidi

Université De Lyon, Saint-Etienne, 42023 France

Ingénierie Des Matériaux Polymères, CNRS, Saint-Etienne, 42023 France

Université De Saint-Etienne, Jean Monnet, Saint-Etienne, 42023 France

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Nathalie Mignard

Nathalie Mignard

Université De Lyon, Saint-Etienne, 42023 France

Ingénierie Des Matériaux Polymères, CNRS, Saint-Etienne, 42023 France

Université De Saint-Etienne, Jean Monnet, Saint-Etienne, 42023 France

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Mohamed Taha

Corresponding Author

Mohamed Taha

Université De Lyon, Saint-Etienne, 42023 France

Ingénierie Des Matériaux Polymères, CNRS, Saint-Etienne, 42023 France

Université De Saint-Etienne, Jean Monnet, Saint-Etienne, 42023 France

Correspondence to: M. Taha (E-mail: [email protected])Search for more papers by this author
First published: 09 February 2016
Citations: 6

ABSTRACT

Polylactic acid was bioconjugated with glutathione (GSH) in a solvent-free one step process. Thermo-reversible networks were first obtained as a consequence of the supramolecular interactions induced by GSH moieties. Then dynamic covalent reactions were added to the networks' synthesis process using dialcohol-functionalized Diels−Alder (DA) adducts. The main properties of these networks were analyzed in relation with their structures and the proportions of supramolecular and DA reactions. The thermo-mechanical properties of the obtained transparent materials and their healing efficiency were evaluated by dynamic mechanical spectroscopy and tensile analyses. Crosslinking/de-crosslinking temperatures varied from 36 to 112°C. The obtained networks showed self-healing ability without external stimuli. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43436.

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