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Preparation of Ag nanoparticles in the presence of low generational poly(ester‐amine) dendrimers
Author(s) -
Xu DongMei,
Zhang KeDa,
Zhu XiuLin
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.25229
Subject(s) - dendrimer , amine gas treating , nanocomposite , aqueous solution , nanoparticle , polymer chemistry , transmission electron microscopy , materials science , molar ratio , copolymer , nuclear chemistry , absorption (acoustics) , chemical engineering , chemistry , organic chemistry , polymer , nanotechnology , catalysis , composite material , engineering
Stable Ag nanoparticles of 10–20 nm were prepared by reduction of AgNO 3 with NaBH 4 in water solution in the presence of low generational hydroxyl‐ terminated poly(ester‐amine) dendrimer G1.0 (OH) 16 and amino‐terminated poly(ester‐amine) dendrimer G1.5 (NH 2 ) 8 by optimizing preparation conditions. UV–vis absorption spectra and transmission electron microscopy were adopted to characterize absorption properties of Ag + /dendrimer complex, Ag/dendrimer nanocomposite aqueous solutions, and the morphology of the formed Ag nanoparticles, respectively. The results showed that the size of the Ag particles increased with Ag + /dendrimer molar ratio, and the size of Ag nanoparticles in Ag/G1.0 (OH) 16 system was larger than that of Ag nanoparticles in Ag/G1.5 (NH 2 ) 8 system, while the polydispersities of two systems were similar. Moreover, the Ag/G1.5 (NH 2 ) 8 nanocomposite system was more stable than the Ag/G1.0 (OH) 16 one. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 422–426, 2007
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