Nanostructured magnetic thin films from organometallic block copolymers: pyrolysis of self-assembled polystyrene-block-poly(ferrocenylethylmethylsilane).
ACS Nano
; 2(2): 263-70, 2008 Feb.
Article
em En
| MEDLINE
| ID: mdl-19206626
ABSTRACT
The pyrolysis of cylinder-forming samples of the diblock copolymer polystyrene-block-poly(ferrocenylethylmethylsilane) (PS-b-PFEMS) in bulk and in thin films has confirmed that these materials are useful for the generation of semi-ordered arrays of C/SiC ceramics containing Fe nanoparticles which are derived from the organometallic domains. In many cases, the ceramic mass yields were predictable and produced ceramics bearing a monomodal distribution of iron nanoparticles due to the nanoscaled structure of the preceramic PFEMS domains. The pyrolysis of thin films stabilized by cross-linking the PS domains with UV light demonstrated high areal yields, improved shape retention, and the presence of cylinder-centered magnetic nanoparticles.
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Base de dados:
MEDLINE
Assunto principal:
Silanos
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Cristalização
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Nanotecnologia
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Nanoestruturas
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Magnetismo
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Membranas Artificiais
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article