Diglycidylether of iso-eugenol: a suitable lignin-derived synthon for epoxy thermoset applications
Number of Authors: 10
2016 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 6, no 73, 68732-68738 p.Article in journal (Refereed) Published
A novel lignin-based synthon, diglycidylether of iso-eugenol (DGE-isoEu) is used as a prepolymer for the preparation of thermosetting resins. DGE-isoEu is synthesized in a two-step procedure with a satisfactory yield from bio-based iso-eugenol (isoEu, 2-methoxy-4-(1-propenyl)phenol) catalytically fragmented from lignin in an organosolv process. DGE-isoEu was fully characterized by NMR, MS and FTIR. Curing of the DGE-isoEu monomer has then been investigated in the presence of several carboxylic acid derivatives hardeners. The thermal and mechanical properties of each material were recorded showing, in particular, a high T-g and instantaneous modulus values in the range of 78-120 degrees C and 4.6-5.5 GPa, respectively. The lignin derived new materials give very attractive thermo-mechanical properties comparable to that of common BPA-containing epoxy resins.
Place, publisher, year, edition, pages
2016. Vol. 6, no 73, 68732-68738 p.
IdentifiersURN: urn:nbn:se:su:diva-134201DOI: 10.1039/c6ra15200gISI: 000381512600022OAI: oai:DiVA.org:su-134201DiVA: diva2:1040223