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Title of Journal: Colloid Polym Sci

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Abbravation: Colloid and Polymer Science

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Springer-Verlag

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DOI

10.1007/1-4020-3910-7_130

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1435-1536

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Synthesis and characterization of novel fourarm s

Authors: Huaming Sun Ziwei Gao Lin Yang Lingxiang Gao Xushe Lv
Publish Date: 2010/10/20
Volume: 288, Issue: 18, Pages: 1713-1722
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Abstract

Spontaneous formation and efficient stabilization of colloidal silver nanoparticles were achieved in aqueous fourarm star polyNNdimethylaminoethyl methacrylate PDMAEMA solution at ambient temperature in the absence of any other reducing agent In this reaction fourarm star PDMAEMA acted as both reducing and stabilizing agents for silver nanoparticles More importantly fourarm star PDMAEMA is a tertiaryaminecontaining star homopolymer which shows that the scope of the reducing and stabilizing agents for metal nanoparticles can be extended from the general homopolymers and the block copolymers to the watersoluble simple tertiaryaminecontaining star homopolymers Fourier transform infrared UV–vis absorption spectroscopy and transmission electron microscopy were used to characterize the synthetic silver nanoparticles A plausible mechanism for the formation of silver nanoparticles was proposed in the presence of linear and star PDMAEMA homopolymers Moreover the size of the resultant silver nanoparticles can be easily tuned by changing the concentrations of AgNO3The authors are grateful for the support of the National Natural Science Foundation of China 20771071 the Program for New Century Excellent Talents in University of China NCET070528 and the Fundamental Research Funds for the Central Universities GK200902001

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