Nano-building block based-hybrid organic–inorganic copolymers with self-healing properties
TypeArticles dans des revues avec comité de lecture
New dynamic materials, that can repair themselves after strong damage, have been designed by hybridization of polymers with structurally well-defined nanobuilding units. The controlled design of cross-linked poly(n-butyl acrylate) (pBuA) has been performed by introducing a very low amount of a specific tin oxo-cluster. Sacrificial domains with non-covalent interactions (i.e. ionic bonds) developed at the hybrid interface play a double role. Such interactions are strong enough to cross-link the polymer, which consequently exhibits rubber-like elasticity behavior and labile enough to enable, after severe mechanical damage, dynamic bond recombination leading to an efficient healing process at room temperature. In agreement with the nature of the reversible links at the hybrid interface, the healing process can speed up considerably with temperature. 1H and 119Sn PFG NMR has been used to evidence the dynamic nature of these peculiar cross-linking nodes.
Files in this item
Showing items related by title, author, creator and subject.
Dispersion of carbon nanotubes in polypropylene via multilayer coextrusion: Influence on the mechanical properties MIQUELARD-GARNIER, Guillaume; GUINAULT, Alain; FROMONTEIL, D; DELALANDE, S; SOLLOGOUB, Cyrille (ELSEVIER, 2013)Multilayer coextrusion was used to disperse Carbon Nanotubes (CNT) in polypropylene (PP). The dilution of commercially available masterbatches using a twin-screw extruder was first applied to produce several formulations, ...
Influence of chemical surface modification of cellulose nanowhiskers on thermal, mechanical, and barrier properties of poly(lactide) based ESPINO-PÉREZ, Etzael; BRAS, Julien; DUCRUET, Violette J.; GUINAULT, Alain; DUFRESNE, Alain; DOMENEK, Sandra (2013)In the aim of producing fully organic bionanocomposite based on poly(lactide) (PLA), cellulose nanowhiskers (CNW) were grafted by n-octadecyl-isocyanate (CNW-ICN) applying an in situ surface grafting method. The compatibilizing ...
Impact of Oxygen Transport Properties on the Kinetic Modeling of Polypropylene Thermal Oxidation. II. Effect of Oxygen Diffusivity FRANÇOIS-HEUDE, Alexandre; RICHAUD, Emmanuel; GUINAULT, Alain; DESNOUX, Eric (Wiley, 2015)The kinetic model, established in a previous article (François-Heude et al., J. Appl. Polym. Sci., in press) to predict the homogeneous oxidation in iPP films typically thinner than 100 µm, is now extended to simulate the ...
RUELLAN, Alexandre; GUINAULT, Alain; SOLLOGOUB, Cyrille; DUCRUET, Violette; DOMENEK, Sandra (Wiley, 2015)Changes in the thermomechanical properties of polylactide (PLA) plasticized by two biodegradable and biobased molecules, Polysorb ID37 (PID37) and squalene, were compared to formulations with petroleum-based plasticizers, ...
Structure and Barrier Properties of Multinanolayered Biodegradable PLA/PBSA Films: Confinement Effect via Forced Assembly Coextrusion FOLLAIN, Nadège; GUINAULT, Alain; SOLLOGOUB, Cyrille; GAUCHER, Valérie; DELPOUVE, Nicolas; MARAIS, Stéphane; MESSIN, Tiphaine (American Chemical Society, 2017)Multilayer coextrusion processing was applied to produce 2049-layer film of poly(butylene succinate-co-butylene adipate) (PBSA) confined against poly(lactic acid) (PLA) using forced assembly, where the PBSA layer thickness ...