Lanthanide dodecyl sulfates, a potent family of catalysts for the preparation of biobased epoxy thermosets

Abstract

Lanthanide dodecyl sulfates, LnDSx, are remarkably effective to catalyze the reaction of diepoxides with diamines in the liquid and solid states, a key reaction in the formation of epoxy thermosets. Among all lanthanides, the lanthanum complex LaNa(DS)4(H2O)2is the most active, allowing a decrease of 60 kJ mol−1of the activation energy between polyethylene imine and limonene dioxide, a biobased epoxy monomer.