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Preparation of Ag Nanoparticles by Templating Poly(vinyl chloride)-g-poly(styrene sulfonic acid) Graft Copolymer Membrane  

Byun, Su-Jin (Department of Chemical and Biomolecular Engineering, Yonsei University)
Seo, Jin-Ah (Department of Chemical and Biomolecular Engineering, Yonsei University)
Chi, Won-Seok (Department of Chemical and Biomolecular Engineering, Yonsei University)
Shul, Yong-Gun (Department of Chemical and Biomolecular Engineering, Yonsei University)
Kim, Jong-Hak (Department of Chemical and Biomolecular Engineering, Yonsei University)
Publication Information
Membrane Journal / v.21, no.1, 2011 , pp. 39-45 More about this Journal
Abstract
An amphiphilic graft copolymer consisting of a poly(vinyl chloride) (PVC) backbone and poly(styrene sulfonic acid) (PSSA) side chains (PVC-g-PSSA) was synthesized via atom transfer radical polymerization (ATRP). This polymer electrolyte membrane was ion-exchanged to Ag ions by immersing in 10 wt% $AgNO_3$ aqueous solution and templated the growth of Ag nanoparticles by a reducing agent. The formation of Ag nanoparticles was confirmed using UV-visible spectroscopy and X-ray diffraction (XRD). Transmission electron microscopy (TEM) revealed that utilization of $NaBH_4$ was the most effective in the formation of Ag nanoparticles with 10~15 nm in size. The formation of Ag nanoparticles was also strongly affected by the concentration of reducing agent and reduction time.
Keywords
nanoparticles; silver; atom transfer radical polymerization (ATRP); nanomaterials graft copolymer;
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