Synthesis of magnetic microspheres with controllable structure via polymerization-triggered self-positioning of nanocrystals.
A facile and novel method for the synthesis of magnetite-polymer hybrid microspheres with controllable structure is reported. On the basis of the interactions between polymers and magnetic nanocrytals, which are coated with a primary oleic acid layer, a variety of magnetic microspheres with well-tailored structure are fabricated by carefully modulating polymerization and selecting components of composite microspheres; the evolvement of hierarchical structure, and the magnetic properties of microspheres were systematically studied. Importantly, the mechanism of polymerization-triggered self-positioning of magnetic nanocrystals is investigated.
Xia
Ao
A
Key Laboratory of Molecular Engineering of Polymers & Department of Macromolecular Science, Advanced Materials Laboratory, Fudan University, 200433 Shanghai, PR China.
Hu
Jianhua
J
Wang
Changchun
C
Jiang
Donglin
D
D008280:Magnetics; D008863:Microspheres; D053758:Nanoparticles / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D014961:X-Ray Diffraction
D019904:Polymethyl Methacrylate