One-pot synthesis of magnetic nanoparticles assembled on polysiloxane rod and their response to magnetic field

Koichiro Hayashi, Wataru Sakamoto, Toshinobu Yogo

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

Rod-like assembled magnetite (Fe3O4) nanoparticles (NPs)were successfully synthesized in a one-pot process using a polysiloxane template derived from a dialkoxysilane. The assembly was constructed using the thiol-ene click reaction between thiol groups on the polysiloxane chain and allyl groups on Fe3O4 NPs. The thiol-containing polysiloxane chain and the allyl-containing Fe3O4 NPs were synthesized by the hydrolysis- condensation of 3-mercaptopropyl(dimethoxy) methylsilane and iron (III) allylacetylacetonate, respectively. Fe 3O4 NPs of around 5 nm were uniformly dispersed on the siloxane rods and exhibited neither remanent magnetization nor coercivity. A fluid containing a dispersion of rod-like assembled Fe3O4 NPs showed yield stress even without the application of an external magnetic field, whereas spherical Fe3O4 NPs exhibited no yield stress. The rod-like assembled Fe3O4 NPs on anisotropic siloxane clearly exhibited typical magnetorheological behavior.

元の言語英語
ページ(範囲)2837-2842
ページ数6
ジャーナルColloid and Polymer Science
291
発行部数12
DOI
出版物ステータス出版済み - 8 2 2013
外部発表Yes

Fingerprint

Siloxanes
polysiloxanes
Silicones
rods
Magnetic fields
Nanoparticles
nanoparticles
synthesis
Sulfhydryl Compounds
magnetic fields
thiols
siloxanes
Yield stress
Magnetite nanoparticles
Coercive force
Condensation
Hydrolysis
Magnetization
magnetite
Iron

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

これを引用

One-pot synthesis of magnetic nanoparticles assembled on polysiloxane rod and their response to magnetic field. / Hayashi, Koichiro; Sakamoto, Wataru; Yogo, Toshinobu.

:: Colloid and Polymer Science, 巻 291, 番号 12, 02.08.2013, p. 2837-2842.

研究成果: ジャーナルへの寄稿記事

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