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Morphology‐ and Phase‐Controlled Iron Oxide Nanoparticles Stabilized with Maleic Anhydride Grafted Polypropylene
Author(s) -
He Qingliang,
Yuan Tingting,
Wei Suying,
Haldolaarachchige Neel,
Luo Zhiping,
Young David P.,
Khasanov Airat,
Guo Zhanhu
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201203347
Subject(s) - maleic anhydride , polypropylene , superparamagnetism , coercivity , thermal decomposition , materials science , nanoparticle , phase (matter) , polymer chemistry , chemical engineering , saturation (graph theory) , magnetization , chemistry , composite material , nanotechnology , organic chemistry , copolymer , physics , mathematics , condensed matter physics , engineering , quantum mechanics , magnetic field , polymer , combinatorics
About phase: Ferromagnetic γ‐Fe 2 O 3 nanowires (left in the figure) with a saturation magnetization ( M s ) of 54.0 emu g −1 and coercivity of 518 Oe at room temperature, and superparamagnetic hollow α‐Fe 2 O 3 nanoparticles (right) with a room‐temperature M s of 2.9 emu g −1 were synthesized by the thermal decomposition of [Fe(CO) 5 ] but with the stabilizing action of maleic anhydride grafted polypropylene.