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Preparation of Polyurethane Nanofiber Mats Containing Silver Nanoparticles  

Jin Wen-Ji (Department of Advanced Fiber Engineering, Division of Nano-Systems, Inha University)
Jeon Hyun-Jeong (Department of Advanced Fiber Engineering, Division of Nano-Systems, Inha University)
Hong Ji-Hye (Department of Advanced Fiber Engineering, Division of Nano-Systems, Inha University)
Jeong Eun-Hwan (Department of Advanced Fiber Engineering, Division of Nano-Systems, Inha University)
Youk Ji-Ho (Department of Advanced Fiber Engineering, Division of Nano-Systems, Inha University)
Publication Information
Textile Science and Engineering / v.43, no.1, 2006 , pp. 1-6 More about this Journal
Abstract
Poly(urethane)(PU) nanofibers containing silver nanoparticles were prepared via a simple one-step method. PU was dissolved in DMAc/THF(7/3 w/w) with a small amount of $AgNO_3.Ag^+$ ions in the PU solution were reduced by DMAc into Ag nanoparticles, which was confirmed by UV-vis spectroscopy and TEM analysis. DMAc was used as a solvent for PU as well as a reducing agent for the Ag+ ions. The resulting solutions were directly electrospun into PU nanofibers. The Ag nanoparticles were all sphere shaped and evenly distributed in the PU nanofibers. The average sizes of Ag nanoparticles in PU nanofibers electro spun with 0.2 and 0.5 wt% $AgNO_3$ were 3.6 and 4.0 nm, respectively.
Keywords
polyurethane; silver nanoparticles; electrospinning; nanofibers; N,N-dimethylacetamide;
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