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

Abstract : 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.
Document type :
Journal articles
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-01972917
Contributor : Frédérique Ham-Pichavant <>
Submitted on : Monday, March 25, 2019 - 9:15:07 AM
Last modification on : Tuesday, April 2, 2019 - 3:14:20 PM

File

c8ra07157h.pdf
Publication funded by an institution

Identifiers

Collections

Citation

Pierre-Luc Durand, Guillaume Chollet, Etienne Grau, Henri Cramail. Versatile cross-linked fatty acid-based polycarbonate networks obtained by thiol–ene coupling reaction. RSC Advances, Royal Society of Chemistry, 2019, 9 (1), pp.145-150. ⟨10.1039/c8ra07157h⟩. ⟨hal-01972917⟩

Share

Metrics

Record views

25

Files downloads

11