Thermal and optical properties of silver–poly(methylmethacrylate) nanocomposites prepared by in-situ radical polymerization

Vodnik, Vesna; Božanić, Dušan K.; Džunuzović, Enis S.; Vuković, Jovana S.; Nedeljković, Jovan M.

doi:10.1016/j.eurpolymj.2009.10.022

Cited by 60 publications

(37 citation statements)

References 54 publications

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“…[37][38][39][40] The glass transition temperature of the nanocomposite was in this case determined by DSC measurements and, as shown in Fig. 8, it was observed at a slightly lower temperature (40 C) than the T g of the pure polymer (48 C).…”

Section: Sers Studies Using Ag/pba Nanocompositesmentioning

confidence: 94%

Polymer based silver nanocomposites as versatile solid film and aqueous emulsion SERS substrates

et al. 2011

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Nanocomposites containing Ag nanoparticles (average diameter $11 nm) dispersed in poly(tertbutylacrylate) were prepared by in situ polymerization via miniemulsions and constitute active and versatile SERS substrates. The use of this synthetic strategy enables the dual use of the final composites as SERS substrates, both as aqueous emulsions and as cast films, shown here by several measurements using thiosalicylic acid as the testing analyte. The main advantage of these types of materials is related to the potential to scale up and the widespread use of handy substrates, using technology already available. This requires homogeneous composite substrates with SERS activity and this was demonstrated here by means of confocal Raman microscopy. Finally, a series of experiments were carried out on Ag/polymer nanocomposites submitted to temperature variations below and above the polymer glass transition temperature (T g ) in order to conclude about the effect of temperature processing conditions on the composites' SERS activity.

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Section: Sers Studies Using Ag/pba Nanocompositesmentioning

confidence: 94%

Polymer based silver nanocomposites as versatile solid film and aqueous emulsion SERS substrates

et al. 2011

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“…According to the Mie theory, SPR of non-interacting silver nanoparticles in PMMA is positioned at 402 nm (refractive index of PMMA is 1.49) [21]. The difference of 20-30 nm between this value and the experimentally measured (Table 1) indicates that the Mie theory may not be applicable in this case.…”

Section: Characterization Of the Pmma/ag Npsmentioning

confidence: 96%

“…Although, a number of papers have been published on the preparation of silver nanoparticles with conventional and green methods [8][9][10][11][12][13][14][15], their incorporation into a polymeric matrix in order to form a nanocomposite polymeric material has only found limited research interest since now [16][17][18][19][20][21]. Particularly, Singh and Khanna [16] were among the first to synthesize silver nano-particles in poly(methyl methacrylate), PMMA using a one-step in-situ method.…”

Section: Introductionmentioning

confidence: 99%

“…For the reduction of Ag + to Ag 0 , butylated hydroxytoluene was used by Kassaee et al [20], aiming to prepare composite materials of PMMA with silver nanoparticles. The only one who prepared silver/PMMA nanocomposites via a purely in-situ polymerization technique were Vodnik et al [21]. NaBH 4 was used as a reducing agent and the silver nanoparticles were added into the monomer, MMA and polymerized in situ.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, characterization and reaction kinetics of PMMA/silver nanocomposites prepared via in situ radical polymerization

Siddiqui

Redhwi

Vakalopoulou

et al. 2015

European Polymer Journal

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“…Thermo-gravimetric analysis measurements carried out on Au-PMMA composites have shown that the presence of silver nanoparticles increases the thermal stability of PMMA. Indeed, it has been reported that, for composites with a low content of silver, the thermal oxidative decomposition of the composites starts only around 350 °C and that the influence of small amounts is pronounced [25]. In order to study the annealing process, the AFM images of the samples were measured, before and after annealing.…”

Section: Annealing Of the Au-pmma Nanocomposite Filmsmentioning

confidence: 99%

Gold-Poly(methyl methacrylate) Nanocomposite Films for Plasmonic Biosensing Applications

et al. 2011

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Gold-poly(methyl methacrylate) nanocomposites are prepared by an in situ method, by irradiating spin-coated films containing the polymer and the gold precursor dissolved in acetone. The reduction of gold ions results in the formation of Au that nucleates and grows within the polymer film. It is shown that, depending on the energy source, gold nanoparticles with different shapes can be formed. Nanocomposites prepared through UV-, thermal-, and MW-irradiation, respectively, show a low sensitivity toward the environment. However, by annealing the samples at temperatures well above the glass transition temperature of the polymer, the response to dielectric environment appears to be enhanced significantly. The sensitivity of samples synthesized through the three different methods is found to be comparable, around 100 nm/RIU. The increased sensitivity of the annealed sample is accounted for by the increased mobility of both polymer chains and gold nanoparticles in the rubbery state of the material and the presence of the monomer. Gold nanoparticles "freed" from the strong interaction with the polymer are now able to feel the molecules from the surrounding environment. The results show that, by using adequate post-synthesis heat treatments, gold-polymer nanocomposites can be used as plasmonic sensing platforms. OPEN ACCESSPolymers 2011, 3 1834

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Thermal and optical properties of silver–poly(methylmethacrylate) nanocomposites prepared by in-situ radical polymerization

Cited by 60 publications

References 54 publications

Polymer based silver nanocomposites as versatile solid film and aqueous emulsion SERS substrates

Polymer based silver nanocomposites as versatile solid film and aqueous emulsion SERS substrates

Synthesis, characterization and reaction kinetics of PMMA/silver nanocomposites prepared via in situ radical polymerization

Gold-Poly(methyl methacrylate) Nanocomposite Films for Plasmonic Biosensing Applications

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