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Encapsulation of silver nanoparticles within double‐cylinder‐type copolymer brushes as templates
Author(s) -
Ishizu Koji,
Kakinuma Hirokazu,
Ochi Koichiro,
Uchida Satoshi,
Hayashi Masaki
Publication year - 2005
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.660
Subject(s) - materials science , copolymer , template , silver nanoparticle , nanoparticle , amphiphile , brush , surface plasmon resonance , nanostructure , molecule , carboxylate , chemical engineering , nanotechnology , polymer chemistry , composite material , polymer , organic chemistry , chemistry , engineering
An encapsulation of silver nanoparticles has been developed based on a template technique. Amphiphilic double‐cylinder‐type copolymer brushes were employed as a single molecule template, utilizing the coordination of Ag + ions with carboxylate groups in the core of the brush. Subsequently, silver nanoparticles ( ca . 7.5 nm in diameter) within the brush template have been prepared by the addition of a chemical reductant, e.g. NaBH 4 . The solution of the resultant nanocylinder composites was a yellow color due to the surface plasmon resonance. These composites were soluble in organic solvents, because the shell of the copolymer brush protected the fabricated silver nanoparticles from aggregation. Copyright © 2005 John Wiley & Sons, Ltd.