Manipulating the dimensional assembly pattern and crystalline structures of iron oxide nanostructures with a functional polyolefin

Qingliang He; Tingting Yuan; Yiran Wang; Abhishant Guleria; Suying Wei; Guoqi Zhang; Luyi Sun; Jingjing Liu; Jingfang Yu; David P. Young; Hongfei Lin; Airat Khasanov; Zhanhu Guo

doi:10.1039/C5NR07213A

Manipulating the dimensional assembly pattern and crystalline structures of iron oxide nanostructures with a functional polyolefin†

Qingliang He,^a Tingting Yuan,^a Yiran Wang,^a Abhishant Guleria,^b Suying Wei,*^b Guoqi Zhang,*^c Luyi Sun,^d Jingjing Liu,^d Jingfang Yu,^d David P. Young,^e Hongfei Lin,^f Airat Khasanov^g and Zhanhu Guo*^a

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^a Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
E-mail: zguo10@utk.edu
Tel: +1 865 974 2933

^b Department of Chemistry and Biochemistry, Lamar University, Beaumont, Texas 77710, USA
E-mail: suying.wei@lamar.edu

^c Department of Sciences, John Jay College and the Graduate Center, The City University of New York, New York, USA
E-mail: guzhang@jjay.cuny.edu

^d Department of Chemical & Biomolecular Engineering, Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06269-3136, USA

^e Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA

^f Department of Chemical and Materials Engineering, University of Nevada, Reno, Nevada 89557, USA

^g Department of Chemistry, University of North Carolina at Asheville, Asheville, North Carolina 28804, USA

Abstract

Controlled crystalline structures (α- and γ-phase) and assembly patterns (1-D, 2-D and 3-D) were achieved in the synthesized iron oxide (Fe₂O₃) nanoparticles (NPs) using polymeric surfactant-polypropylene grafted maleic anhydride (PP-g-MA) with different concentrations. In addition, the change of the crystalline structure from the α- and γ-phase also led to the significantly increased saturation magnetization and coercivity.

Nanoscale

Manipulating the dimensional assembly pattern and crystalline structures of iron oxide nanostructures with a functional polyolefin†

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Manipulating the dimensional assembly pattern and crystalline structures of iron oxide nanostructures with a functional polyolefin

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