Solubility in CO2 and carbonation studies of epoxidized fatty acid diesters: towards novel precursors for polyurethane synthesis
2010; Royal Society of Chemistry; Volume: 12; Issue: 12 Linguagem: Inglês
10.1039/c0gc00371a
ISSN1463-9270
AutoresAurélie Boyer, Éric Cloutet, Thierry Tassaing, Benoît Gadenne, Carine Alfos, Henri Cramail,
Tópico(s)Polymer composites and self-healing
ResumoNovel linear polyurethanes were synthesized by bulk polyaddition of diamines with two vegetable-based biscarbonates produced from oleic acid methyl ester. Internal carbonated fatty acid diester (ICFAD) and terminal carbonated fatty acid diester (TCFAD) were obtained by the reaction of their epoxide precursors with CO2. Terminal epoxy fatty acid diester (TEFAD) was found to be more soluble and more reactive in CO2 than internal epoxy fatty acid diester (IEFAD). Polyurethanes obtained by polyaddition of TCFAD and ICFAD with diamines exhibit molecular weights up to 13 500 g mol−1 and glass transitions around −15 °C. Amide linkages were not observed when secondary diamine was used as the comonomer.
Referência(s)