Array of Fe3O4 Nanoparticles in PS-b-P2VP thin Films

Xin Kang Gao; Jun Liu; Ting Hua Wang; Xue Li; Xiao Kai Zhang

doi:10.4028/www.scientific.net/AMM.345.193

Paper Titles

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Surface Chemical Modification and Characterization of Nano Fe₂O₃
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Synthesis, Characterization, and Photoluminescence of a Novel Eu-Containing Polymer Precursor: {Tris(acetylacetonate)5-acrylamido-1,10-phenanthroline}Europium(III)
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Array of Fe₃O₄Nanoparticles in PS-b-P2VP thin Films
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Simulation of Graded Band-Gap PIN nc-Si Thin-Film Solar Cells
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Preparation of Mesoporous Magnetic TiO₂/CoFe₂O₄ Photocatalysts Using Ionic Liquid as Template Agent
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Effect of the Pore Fractal Dimensions on Absorption Ability in Superabsorbent Fibers
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Microstructural Evolution and hardening of Subsurface of Mg-3Al-1Zn Alloy during Dry Sliding Wear
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 345Array of Fe3O4 Nanoparticles in PS-b-P2VP thin...

Array of Fe₃O₄Nanoparticles in PS-b-P2VP thin Films

Abstract:

In this study, a method to generate arrays of Fe₃O₄ nanoparticles (MNPs) via block copolymer (BC) self-assembly was developed. A composite film of polystyrene-block-poly (2-vinylpyridine) (PS-b-P2VP)/MNPs was first prepared by spin-coating the PS-b-P2VP/MNPs mixed solution on a carbon substrate. After the composite film was annealed at high temperature for 2 days, it was found that the modified MNPs could be selectively incorporated into P2VP cylinders in PS-b-P2VP diblock copolymers and the P2VP cylinders were oriented parallel to the substrate. For a long time annealing (10 days), the P2VP cylinders become normal to the substrate and MNPs are located at the interface of P2VP and PS phases.