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Citation: SUN Rui-Min, ZHAO Hui, LUO Xiao-Jun, LUO Yun-Jun. Hyperbranched Polymer Templates for Synthesis of Ag Nanoparticles[J]. Chinese Journal of Applied Chemistry, ;2008, 25(12): 1474-1477. shu

Hyperbranched Polymer Templates for Synthesis of Ag Nanoparticles

SUN Rui-Min ^a ,
ZHAO Hui ^a,b ,
LUO Xiao-Jun ^a ,
LUO Yun-Jun ^b,,

1.
aResearch center of Functional Materials, Kaifeng University, Kaifen 475004;
2.
b School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081

Corresponding author: LUO Yun-Jun,
Received Date: 26 November 2007
Available Online: 26 March 2008

Silver nanoparticles in hyperbranched poly(amine-ester)(HPAE) were prepared by means of the reduction of Ag⁺ with NaBH₄ or UV irradiation.HPAE was found to play a key role in the formation of the nanosized particles.Transmission electron microscopic(TEM) analysis showed that silver nanoparticles were spherical and homogeneously dispersed in HPAE with diameters of ~45 nm(NaBH₄ reduction) or ~20 nm(UV irradiation).The longer the UV irradiation,the larger the silver nanoparticles' size,and the higher yield.The absorption peaks due to the characteristic surface plasmon resonance of the obtained silver nanoparticles were observed at ~420 nm in the ultraviolet-visible(UV-Vis) absorption spectra.FT-IR spectra confirm that there were strong interactions between silver nanoparticles and HPAE,showing that HPAE provided a very effective protection on silver nanoparticles.
- hyperbranched poly(amine-ester),
- Ag nanoparticle,
- template
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