Polylactic acid bioconjugated with glutathione: Thermosensitive self‐healed networks
Author(s) -
Djidi Dalila,
Mignard Nathalie,
Taha Mohamed
Publication year - 2016
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.43436
Subject(s) - polylactic acid , supramolecular chemistry , materials science , polymer chemistry , adduct , glutathione , dynamic light scattering , covalent bond , chemistry , polymer , organic chemistry , composite material , nanotechnology , molecule , enzyme , nanoparticle
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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