DURAND, Pierre-Luc; CHOLLET, Guillaume; GRAU, Etienne; CRAMAIL, Henri

doi:10.1039/c8ra07157h

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DURAND, Pierre-Luc
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers

CHOLLET, Guillaume
Institut des Corps Gras [ITERG]

GRAU, Etienne

Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers

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RSC Advances. 2019, vol. 9, n° 1, p. 145-150

Royal Society of Chemistry

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Bio-sourced polycarbonate networks have been synthesized from an alkene-functional fatty-acid based polycarbonate precursor. Cross-linked networks were created using the radical thiol-ene coupling reaction. The resulting polycarbonate materials exhibited versatile properties either influenced by the structure of the cross-linker or the cross-linker/olefin unit ratio. Indeed, the storage modulus above the glass transition temperature could be modulated from 0.9 to 8.9 MPa only by changing the type of cross-linker, i.e. 1,9-nonanedithiol vs. 1,4-benzenedimethanethiol. The cross-linker/olefin unit ratio was also shown to largely impact the polycarbonate networks properties. An elongation at break of nearly 200% was reached when a low cross-linker/olefin ratio was applied. Moreover, functional polycarbonate networks bearing pendant thiol groups were obtained when an excess of dithiol was used with respect to olefin groups.< Réduire

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Versatile cross-linked fatty acid-based polycarbonate networks obtained by thiol–ene coupling reaction

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Résumé en anglais

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