Synthesis of metal/polymer nanocomposite by UV-radiation curing

Balan, Lavinia; Burget, Dominique

doi:10.1016/j.eurpolymj.2006.08.016

Cited by 65 publications

(36 citation statements)

References 18 publications

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“…Synthesis of Ag/zeolite Ncs by using NaBh 4 For the synthesis of Ag/zeolite NCs, the silver contents of the samples were 0.5 (A1), 1.0 (A2), 1.5 (A3), 2.0 (A4), and 5.0 g (A5) Ag/100 g zeolite. Constant amounts of zeolite were suspended in different volumes of 1 × 10 −3 M AgNO 3 solution and stirred for 24 hours at room temperature to obtain the AgNO 3 /zeolite suspensions and completed cation exchange.…”

Section: Materials and Methods Materialsmentioning

confidence: 99%

“…These classifications are described as nanocomposites (NCs). 3 There are different types of NCs depending on the phases of constituents, eg, metal/polymer, 4 metal/metal, 5 metal/metal oxides, 6 metal/clay, 7,8 and metal/zeolite.…”

Section: Introductionmentioning

confidence: 99%

“…Zeolites are porous crystalline hydrated sodium aluminosilicate materials made of MO 4 (M = Si and Al) hexagonal connections by oxygen atoms with numerous channels and pores. There are water molecules and different cations in the porous structures of zeolite frameworks.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of silver nanoparticles doped in the zeolite framework and antibacterial activity

Shameli¹,

Ahmad²,

Zargar³

et al. 2011

IJN

141

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Using the chemical reduction method, silver nanoparticles (Ag NPs) were effectively synthesized into the zeolite framework in the absence of any heat treatment. Zeolite, silver nitrate, and sodium borohydride were used as an inorganic solid support, a silver precursor, and a chemical reduction agent, respectively. Silver ions were introduced into the porous zeolite lattice by an ion-exchange path. After the reduction process, Ag NPs formed in the zeolite framework, with a mean diameter of about 2.12–3.11 nm. The most favorable experimental condition for the synthesis of Ag/zeolite nanocomposites (NCs) is described in terms of the initial concentration of AgNO 3 . The Ag/zeolite NCs were characterized by ultraviolet-visible spectroscopy, powder X-ray diffraction, transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray fluorescence, and Fourier transform infrared. The results show that Ag NPs form a spherical shape with uniform homogeneity in the particle size. The antibacterial activity of Ag NPs in zeolites was investigated against Gram-negative bacteria (ie, Escherichia coli and Shigella dysentriae ) and Gram-positive bacteria (ie, Staphylococcus aureus and methicillin-resistant Staphylococcus aureus ) by disk diffusion method using Mueller–Hinton agar at different sizes of Ag NPs. All of the synthesized Ag/zeolite NCs were found to have antibacterial activity. These results show that Ag NPs in the zeolite framework can be useful in different biological research and biomedical applications.

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Section: Materials and Methods Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fabrication of silver nanoparticles doped in the zeolite framework and antibacterial activity

Shameli¹,

Ahmad²,

Zargar³

et al. 2011

IJN

141

View full text Add to dashboard Cite

show abstract

“…[22] Another type of nanocomposites consists in a dispersion of metal particles into a polymeric matrix such as poly(vinyl alcohol), [23,24] poly(methyl methacrylate) [25] or poly(vinyl pyrrole) for instance. [26,27] Typically, in-situ and ex-situ methods [28][29][30] are the two main synthetic routes that lead to silver-polymer nanocomposites. The ex-situ method consists in dispersing dry silver nanoparticles produced beforehand by an appropriated chemical process into a polymer medium to generate highly ordered periodic arrays of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

In-situ fabrication of polyacrylate–silver nanocomposite through photoinduced tandem reactions involving eosin dye

Balan

Malval

Schneider

et al. 2010

Polymer

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. In-situ fabrication of polyacrylate-silver nanocomposite through photoinduced tandem reactions involving eosin dye. Polymer, Elsevier, 2010, 51 (6) ABSTRACTA silver-acrylate nanocomposite was prepared using a novel one-pot strategy involving eosin dye as visible sensitizer and an amine derivative as radicals source. The mechanism highlighted by steady state photolysis and time resolved absorption spectroscopy lies on the initial formation of a strong ion pair complex between eosin and Ag + . Upon visible irradiation, the excited triplet state of the metal complex efficiently abstracts a hydrogen atom from the amine and produces a -aminoalkyl radical. In acrylate monomer matrix, such a strong reactive species initiates a free radical photopolymerization and also provides the reduction of the silver cation. Through this "in-situ" fabrication method, the kinetics formation of the nanocomposite and its detailed structural analysis are characterized by UV-Visible, real-time FTIR absorption spectroscopy and by transmission electron microscopy.

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“…Thus, silver nanoparticles can be produced beforehand, and then dispersed into a polymerizable formulation to obtain self-assembly functionalized structures. However, besides the specific hazards related to handling dry nanoparticules, this "ex-situ" method is limited by the difficulty to control their monodispersity over a large scale (Balan et al, 2006. In the "in-situ" approach, the metal nanoparticles are generated in a polymerizable medium from cationic precursors that exhibit better dispersion ability and that undergo facile chemical or photochemical reduction.…”

Section: Introductionmentioning

confidence: 99%

In Situ Photochemically assisted Synthesis of Silver Nanoparticles in Polymer Matrixes

Balan¹,

Malval²,

Lougnot³

2010

Silver Nanoparticles

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Synthesis of metal/polymer nanocomposite by UV-radiation curing

Cited by 65 publications

References 18 publications

Fabrication of silver nanoparticles doped in the zeolite framework and antibacterial activity

Fabrication of silver nanoparticles doped in the zeolite framework and antibacterial activity

In-situ fabrication of polyacrylate–silver nanocomposite through photoinduced tandem reactions involving eosin dye

In Situ Photochemically assisted Synthesis of Silver Nanoparticles in Polymer Matrixes

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