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Synthesis of hyperbranched poly(amine–ester)-protected noble metal nanoparticles in aqueous solution

Published online by Cambridge University Press:  31 January 2011

Chunyan Bao
Affiliation:
Department of Organic Chemistry, College of Chemistry, Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China
Ming Jin
Affiliation:
Department of Organic Chemistry, College of Chemistry, Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China
Ran Lu*
Affiliation:
Department of Organic Chemistry, College of Chemistry, Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China
Pengchong Xue
Affiliation:
Department of Organic Chemistry, College of Chemistry, Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China
Tierui Zhang
Affiliation:
Department of Organic Chemistry, College of Chemistry, Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China
Changhui Tan
Affiliation:
Department of Organic Chemistry, College of Chemistry, Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China
Yingying Zhao
Affiliation:
Department of Organic Chemistry, College of Chemistry, Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The synthesis of Au and Ag metal nanoparticles stabilized by G4, G5, and G6 hyperbranched poly(amine–ester) (HPAE) is reported. The reduction of hydrogen tetrachloroaurate and silver nitrate in the presence of HPAE resulted in the formation of stable, uniform, water-soluble nanoparticles. The average particle sizes are (2.4 ±0.5)–(4.1 ±0.4) nm for Au and (2.5 ±4.9)–(10.3 ±1.7) nm for Ag, depending on the generation of HPAE and metal ion-to-end tertiary amine of HPAE (M:N) used. All of the obtained colloidal solutions are stable for a long period of time. The results from ultraviolet–visible absorption spectra and Fourier transform infrared absorption spectroscopic investigations confirm the interactions between metal and HPAE.

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Articles
Copyright
Copyright © Materials Research Society 2003

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