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Formation and dissolution of silver nanoparticles

D. DONESCU1,* , C. L. NISTOR1, V. PURCAR1, C. PETCU1, S. SERBAN1, M. C. COROBEA1, M. GHIUREA1

Affiliation

  1. National R&D Institute for Chemistry and Petrochemistry ICECHIM – Polymer Department, Splaiul Independentei 202-6, PO Box 174/35 Bucharest, Romania

Abstract

The emulsion polymerization of styrene (St), butyl acrylate (BuA) and methyl methacrylate (MMA), in the presence of sodium dodecylsulfate (SDS) and nonylphenol ethoxylate with 25 moles of ethylene oxide (NPEO25) was realized. The silver particles were obtained from reaction between AgNO3 and NaBH4 during the radical polymerization. This phenomenon takes place prevalently when NPEO25 is introduced for stabilization. The copolymerization of vinyltriethoxysilane (VTES) with monomers used, assures covalent bonds between silica generated by sol-gel process and polymers obtained by radical polymerization. This covalent bonding determines the increase of thermal stability of the obtained hybrids.

Keywords

Sol-gel process, Emulsion polymerization, Hybrids, Silver nanoparticles, Nanocomposites.

Citation

D. DONESCU, C. L. NISTOR, V. PURCAR, C. PETCU, S. SERBAN, M. C. COROBEA, M. GHIUREA, Formation and dissolution of silver nanoparticles, Optoelectronics and Advanced Materials - Rapid Communications, 3, 1, January 2009, pp.44-48 (2009).

Submitted at: Oct. 2, 2008

Accepted at: Jan. 21, 2009