A one pot one step combined radical and ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
A one pot one step combined radical and ring-opening route for the dual functionalization of starch in aqueous medium
Auteur(s) :
Meimoun, Julie [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Wiatz, Vincent [Auteur]
Saint-Loup, René [Auteur]
Parcq, Julien [Auteur]
David, adelina [Auteur]
Stoclet, Grégory [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Gaucher, Valerie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Huret, Audrey [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Bonnet, Fanny [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Zinck, Philippe [Auteur correspondant]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Wiatz, Vincent [Auteur]
Saint-Loup, René [Auteur]
Parcq, Julien [Auteur]
David, adelina [Auteur]
Stoclet, Grégory [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Gaucher, Valerie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Huret, Audrey [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Bonnet, Fanny [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Zinck, Philippe [Auteur correspondant]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Titre de la revue :
Carbohydrate Polymers
Numéro :
254
Pagination :
117399
Date de publication :
2021-02-01
ISSN :
0144-8617
Discipline(s) HAL :
Chimie/Matériaux
Chimie/Polymères
Chimie/Polymères
Résumé en anglais : [en]
Starch based materials are attractive bio-based alternative to fully synthetic polymers. Native starch has however limited thermoprocessability and properties and must be modified. In order to improve the properties of ...
Lire la suite >Starch based materials are attractive bio-based alternative to fully synthetic polymers. Native starch has however limited thermoprocessability and properties and must be modified. In order to improve the properties of starch-graft-poly(butyl-acrylate-co-styrene) copolymers via a process as green as possible, we report herein a new method for the dual functionalization of the polysaccharide via a one pot one step reaction in aqueous medium combining free radical polymerizations and ring-opening chemistry. Poly(butyl acrylate) / poly(butyl acrylate-co-styrene) (ca. 60 000 g/mol) and oligo(-caprolactone) were grafted on starch with a grafting percentage up to 75 %. The copolymers show two glass transition temperatures: one around 55-60°C related to starch and a second attributed to the grafted vinyl polymers, from -46°C to 20°C depending on butyl acrylate/styrene ratio). The resulting dual functionalized materials exhibit excellent mechanical properties, with elongation at break in the range 20-210 %, while single functionalized starch shows less than 5 %.Lire moins >
Lire la suite >Starch based materials are attractive bio-based alternative to fully synthetic polymers. Native starch has however limited thermoprocessability and properties and must be modified. In order to improve the properties of starch-graft-poly(butyl-acrylate-co-styrene) copolymers via a process as green as possible, we report herein a new method for the dual functionalization of the polysaccharide via a one pot one step reaction in aqueous medium combining free radical polymerizations and ring-opening chemistry. Poly(butyl acrylate) / poly(butyl acrylate-co-styrene) (ca. 60 000 g/mol) and oligo(-caprolactone) were grafted on starch with a grafting percentage up to 75 %. The copolymers show two glass transition temperatures: one around 55-60°C related to starch and a second attributed to the grafted vinyl polymers, from -46°C to 20°C depending on butyl acrylate/styrene ratio). The resulting dual functionalized materials exhibit excellent mechanical properties, with elongation at break in the range 20-210 %, while single functionalized starch shows less than 5 %.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Établissement(s) :
Université de Lille
CNRS
INRA
ENSCL
CNRS
INRA
ENSCL
Collections :
Équipe(s) de recherche :
Ingénierie des Systèmes Polymères
Catalyse et synthèse éco-compatible (CASECO)
Catalyse et synthèse éco-compatible (CASECO)
Date de dépôt :
2020-11-17T13:16:20Z
2020-11-17T14:19:40Z
2020-12-11T18:26:15Z
2022-03-21T10:39:30Z
2020-11-17T14:19:40Z
2020-12-11T18:26:15Z
2022-03-21T10:39:30Z
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