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Abstract
In order to enhance the phase stability of dispersions of magnetic nanoparticles (NPs) in a polymorphic liquid crystal, new ligands have been designed consisting of a terphenyl-based liquid crystalline core. The most stable dispersions were obtained with 7 nm super-paramagnetic Fe3O4 NPs decorated with the new ligands in place of 10 nm ferromagnetic CoFe2O4 spherical NPs.
Acknowledgements
Financial support is gratefully acknowledged from the Royal Society (International Incoming Short Visits 2008/R1), the National Academy of Science of Ukraine (Project No 0107U003550 and Research Fellowship No 288–12.10.2011), and STCU (Project No 5205). The authors are also grateful: to D. Kumar (North Carolina A&T State University) and K. Mosul (Karazin National University, Kharkov, Ukraine) for the magnetic measurements of nanoparticles; to O. Vashchenko (ISMA, NAS of Ukraine) for providing TGA; and to P. Mateichenko (ISC, NAS of Ukraine) for carrying out the EDS analysis.