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This work presents an amino acid-derived urea as the low molecular weight gelators (LMWGs) to solidify a variety of base-lubricating oils as well as different organic solvents. LMWGs self-assemble to form fibrous structures by intermolecular hydrogen bonding and van der Waals forces, and the gelation mechanism was proposed according to the NMR analysis. The obtained gels can liquefy upon heating and...
1-Alkyl-3-methylimidazolium ibuprofen ionic liquids (ILs, L-Ibu104, L-Ibu106 and L-Ibu108) were synthesized from an anti-inflammatory drug, sodium ibuprofen. The physicochemical and tribological properties of these ILs as neat lubricants for steel/steel and steel/copper contacts were measured. The results of hydrolysis stability evaluation and copper strip corrosion test show that these kinds of ILs...
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