TY - JOUR
KW - Transmission electron microscopy
KW - Room temperature
KW - Nanoparticles
KW - Nanocomposites
KW - Block copolymers
KW - X-ray Diffraction
KW - Nanocomposite films
KW - Self-assembled
KW - Magnetic properties
KW - SQUIDs
KW - Superparamagnetism
KW - Quantum interference devices
KW - Mixed metal oxide
KW - Norbornenes
KW - Polymer matrices
KW - Ssbauer spectroscopies
KW - Superconducting quantum interference device magnetometry
KW - Superparamagnetics
KW - Wet-chemical method
KW - Wide angle X-ray diffraction
KW - Metallic compounds
KW - Molybdenum
KW - Nanomagnetics
AU - S.R Ahmed
AU - S.B Ogale
AU - G.C Papaefthymiou
AU - Ramamoorthy Ramesh
AU - P Kofinas
AB - The development of self-assembled magnetic CoFe2O4 nanoparticles within polymer matrices at room temperature is reported. Diblock copolymers consisting of poly (norbornene) and poly (norbornene-dicarboxcylic acid) (NOR/NORCOOH) were synthesized. The self-assembly of the mixed metal oxide within the NORCOOH block was achieved at room temperature by processing the copolymer nanocomposite using wet chemical methods. Morphology and magnetic properties were determined by superconducting quantum interference device magnetometry, transmission electron microscopy, wide angle x-ray diffraction, and 57Fe Mössbauer spectroscopy. The CoFe2O 4 nanoparticles are uniformly dispersed within the polymer matrix, and have an average radius of 4.8±1.4nm. The nanocomposite films are superparamagnetic at room temperature and ferrimagnetic at 5 K. © 2002 American Institute of Physics.
BT - Applied Physics Letters
DO - 10.1063/1.1456258
LA - eng
M1 - 9
N1 - cited By 88
N2 - The development of self-assembled magnetic CoFe2O4 nanoparticles within polymer matrices at room temperature is reported. Diblock copolymers consisting of poly (norbornene) and poly (norbornene-dicarboxcylic acid) (NOR/NORCOOH) were synthesized. The self-assembly of the mixed metal oxide within the NORCOOH block was achieved at room temperature by processing the copolymer nanocomposite using wet chemical methods. Morphology and magnetic properties were determined by superconducting quantum interference device magnetometry, transmission electron microscopy, wide angle x-ray diffraction, and 57Fe Mössbauer spectroscopy. The CoFe2O 4 nanoparticles are uniformly dispersed within the polymer matrix, and have an average radius of 4.8±1.4nm. The nanocomposite films are superparamagnetic at room temperature and ferrimagnetic at 5 K. © 2002 American Institute of Physics.
PY - 2002
SP - 1616
EP - 1618
T2 - Applied Physics Letters
TI - Magnetic properties of CoFe2O4 nanoparticles synthesized through a block copolymer nanoreactor route
VL - 80
SN - 00036951
ER -