Skip to Main content Skip to Navigation
Journal articles

From multi-functional siloxane-based cyclic carbonates to hybrid polyhydroxyurethane thermosets

Abstract : In this study, various novel cyclic carbonate-siloxane monomers were synthesized by hydrosilylation and CO2 carbonation of allyl glycidyl ether and epoxy-eugenol functions. Different structures were obtained from cyclic siloxane (D4) or linear PMHS-PDMS polymers with dangling cyclic carbonate functions. This hybrid route gives access to highly functional and low viscous cyclic carbonate monomers. Cyclic siloxane-carbonate monomers were reacted with 1,5-diamino-2-methylpentane (DYTEK-A) and 1,3-cyclohexanebis(methylamine) (CBMA) to afford polyhydroxyurethane (PHUs) thermosets as non-isocyanate polyurethanes (NIPUs) with high conversions and good reactivity. PHU thermosets were characterized to compare the thermal and mechanical properties of those different structures. The impact of the functionality was highlighted with different functional oligomers playing on cross-linking density of materials. D4 structure led to short and functional star shape monomers and afforded polymers with the highest mechanical properties. Eugenol, with an aromatic moiety, increased the stiffness and the thermal stability of PHU thermosets. Such hybrid PHU-siloxanes polymers combined flexibility of siloxanes with high mechanical performances of urethane groups.
Document type :
Journal articles
Complete list of metadatas

Cited literature [49 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02356796
Contributor : Sylvain Caillol <>
Submitted on : Friday, May 15, 2020 - 4:00:52 PM
Last modification on : Saturday, June 27, 2020 - 6:40:04 PM

Files

Manuscript PHU-PDMS submitted....
Files produced by the author(s)

Identifiers

Collections

Citation

Yvan Ecochard, Jules Leroux, Bernard Boutevin, Rémi Auvergne, Sylvain Caillol. From multi-functional siloxane-based cyclic carbonates to hybrid polyhydroxyurethane thermosets. European Polymer Journal, Elsevier, 2019, 120, pp.109280-109289. ⟨10.1016/j.eurpolymj.2019.109280⟩. ⟨hal-02356796⟩

Share

Metrics

Record views

80

Files downloads

131