Nanostructured Materials with Conducting and Magnetic Properties: Preparation of Magnetite/Conducting Copolymer Hybrid Nanocomposites by Ultrasonic Irradiation

Title
Nanostructured Materials with Conducting and Magnetic Properties: Preparation of Magnetite/Conducting Copolymer Hybrid Nanocomposites by Ultrasonic Irradiation
Author(s)
심재진할도리유바라즈웬방호아[웬방호아]팜쿠앙롱[팜쿠앙롱]
Keywords
CORE-SHELL STRUCTURE; PHENYLENEDIAMINE COPOLYMERS; POLYANILINE NANOPARTICLES; ELECTRICAL-CONDUCTIVITY; COMPOSITES; POLYMERIZATION; PARTICLES; POLYMERS; STABILITY; ANILINE
Issue Date
201105
Publisher
TAYLOR & FRANCIS LTD
Citation
COMPOSITE INTERFACES, v.18, no.3, pp.259 - 274
Abstract
Conducting copolymer poly(aniline-co-p-phenylenediamine) [poly(Ani-co-pPD)] and surface-modified magnetite (Fe3O4) composites were synthesized by ultrasonically-assisted chemical oxidative polymerization. Fe3O4 nanoparticles were surface-modified with silane coupling agent methacryloxypropyl-trimethoxysilane (MPTMS) in order that they would be well dispersed for the reaction process. It was also found that the aggregation of Fe3O4 nanoparticles could be reduced under ultrasonic irradiation. TEM analysis confirmed that the resulting poly(Ani-co-pPD)/Fe3O4 nanocomposite showed core-shell morphology, in which Fe3O4 nanoparticles were well dispersed. The incorporation of Fe3O4 in the nanocomposites was endorsed by FT-IR. The nanocomposites were also confirmed by UV-visible, TGA and XRD. Conductivity of the nanocomposites was found to be in the range of 7.02 x 10(-4)-6.54 x 10(-6) S/cm. Higher saturated magnetization of 12 emu/g was observed for composite with 20% Fe3O4. (C) Koninklijke Brill NV, Leiden, 2011
URI
http://hdl.handle.net/YU.REPOSITORY/25261http://dx.doi.org/10.1163/092764411X570851
ISSN
0927-6440
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공과대학 > 화학공학부 > Articles
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