Ionic liquids are environmentally friendly and versatile tools with ultralow vapor pressure, very high thermal and redox stability and remarkably low melting points. Numerous new combinations of ions have appeared in recent years presenting exciting and novel substances with considerable interest in many ?elds of synthetic chemistry as also in the chemical industry. The synthesis of specific ionic liquids for the surface functionalization of ferromagnetic FePt nanoparticles is presented.  The ionic liquids are chemisorbed on the surface of L10 FePt particles, which define an exciting class of permanent magnets with high magnetocrystalline anisotropy. This process is leading to a new class of viscous materials where the solvent is chemically absorbed on their surface. Emphasis will be given on the macroscopic properties of the materials: magnetic behavior, ionic conductivity, thermal analysis and rheology.

Synthesis and properties of permanent magnetic FePt functionalized with ionic liquids

243rd National Meeting (2012)

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