Synthesis of block copolymer-stabilized Au-Ag alloy nanoparticles and fabrication of poly(methyl methacrylate)/Au-Ag nanocomposite film
作者： Uma Chatterjee , Suresh K. Jewrajka
DOI: 10.1016/J.JCIS.2007.05.028
关键词: Nanoparticle 、 Methyl methacrylate 、 Copolymer 、 Nanocomposite 、 Polymer 、 Nuclear chemistry 、 Materials science 、 Polymer chemistry 、 Poly(methyl methacrylate) 、 Dynamic light scattering 、 Methacrylate
摘要: Abstract [Poly(2-( N , -dimethylamino)ethyl methacrylate)]– b –poly(methyl methacrylate)– –[poly(2-( methacrylate)] ( M n = 45 000 ; 20K–5K–20K; PDI 1.2) block copolymer surfactant stabilized amphiphilic gold–silver alloy nanoparticles (Au–Ag(PDMA– –PMMA– –PDMA)) has been synthesized in both water and organic medium. The pre-made were successfully dispersed hydrophobic poly(methyl methacrylate) homopolymer matrix (PMMA) of molecular weight 30,000. successful synthesis was accessed by Transmission Electron Microscope (TEM), Energy Dispersed X-ray (EDX), UV–visible spectrophotometric analysis. surface functionality the confirmed quantitative determining grafting density polymer chain around nanoparticle using combination thermo gravimetric (TGA) TEM hydrodynamic diameter particles including chains obtained from dynamic light scattering measurement (DLS). mechanism high concentration Au–Ag HAuCl 4 AgNO 3 (in presence Cl − reduction gold salt) metal precursors preparation methacrylate)/gold–silver nanocomposite films have discussed.
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