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Formation of Silver Nanoparticles in Polystyrene-b-Poly(oxyethylene methacrylate) Block Copolymer Membranes  

Koh, Joo-Hwan (Department of Chemical and Biomolecular Engineering, Yonsei University)
Seo, Jin-Ah (Department of Chemical and Biomolecular Engineering, Yonsei University)
Roh, Dong-Kyu (Department of Chemical and Biomolecular Engineering, Yonsei University)
Kim, Jong-Hak (Department of Chemical and Biomolecular Engineering, Yonsei University)
Publication Information
Membrane Journal / v.20, no.1, 2010 , pp. 55-61 More about this Journal
Abstract
A diblock copolymer of polystyrene-b-poly(oxyethylene methacrylate) (PS-b-POEM) was synthesized via atom transfer radical polymerization (ATRP), as revealed by FT-IR spectroscopy. The self-assembled block copolymer membrane was prepared and used to template the growth of silver nanoparticles in the solid state by the introduction of $AgCF_3SO_3$ precursor and UV irradiation process. Transmission electron microscopy (TEM) and UV-visible spectroscopy confirmed the in situ formation of silver nanoparticles within the block copolymer membranes, and the size of nanoparticles were controlled by adjusting the moiety of hydrophilic POEM domains. PS-b-POEM block copolymer with a lower POEM content was effective in generating smaller size of metal nanoparticles.
Keywords
atom transfer radical polymerization; block copolymer; nanoparticles; silver; templates;
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Times Cited By KSCI : 3  (Citation Analysis)
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