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Superparamagnetic Nanocomposites Templated with Pyrazole-Containing Diblock Copolymers
Department of Chemistry, University of Central Florida, P.O. Box 162366, Orlando, FL 32816, USA
Department of Physics, University of Florida, Gainesville, FL 32611, USA
* Author to whom correspondence should be addressed.
Received: 19 March 2012; in revised form: 26 April 2012 / Accepted: 14 May 2012 / Published: 31 May 2012
Abstract: Monodisperse maghemite nanoparticles, templated in novel, well-defined pyrazole-containing norbornene-based block copolymers, provided a superparamagnetic nanocomposite with high saturation magnetization at room temperature under an applied magnetic field. The synthesis of the polymer nanocomposites and physical, morphological, and magnetic chracaterization of the nanocomposites are reported. Micelle-encapsulated superparamagnetic nanocomposites were generated for dispersal in aqueous medium. Their stability in water in the presence of a magnetic field was investigated as was their morphology and cell viability, strongly suggesting the potential of these superparamagnetic polymer-based nanocomposites in certain biomedical imaging and associated applications.
Keywords: block copolymer; polymeric nanocomposite; maghemite; ROMP; chelating ligand
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Biswas, S.; Belfield, K.D.; Das, R.K.; Ghosh, S.; Hebard, A.F. Superparamagnetic Nanocomposites Templated with Pyrazole-Containing Diblock Copolymers. Polymers 2012, 4, 1211-1225.
Biswas S, Belfield KD, Das RK, Ghosh S, Hebard AF. Superparamagnetic Nanocomposites Templated with Pyrazole-Containing Diblock Copolymers. Polymers. 2012; 4(2):1211-1225.
Biswas, Sanchita; Belfield, Kevin D.; Das, Ritesh K.; Ghosh, Siddhartha; Hebard, Arthur F. 2012. "Superparamagnetic Nanocomposites Templated with Pyrazole-Containing Diblock Copolymers." Polymers 4, no. 2: 1211-1225.