Preparation and characterization of poly(amic acid)-stabilized silver nanoparticles

Abstract

Stable and monodispersed silver nanoparticles were produced through a mild, convenient, one-pot method based on the reduction of silver nitrate in the presence of poly(amic acid) (PAA) as a stabilizer. The surface plasma band transition was monitored along with time in the reaction mixture for three sets of experiments by ultraviolet-visible spectroscopy. Analysis of the data with the Avrami equation yielded n exponent with values between 0.5 and 1.5, demonstrating three-dimensional heterogeneous nucleation and diffusion-controlled growth, accompanied by soft impingement effect. XRD and TEM analyses show a softly agglomerated polycrystalline state and a nearly spherical morphology (<50 nm) of nanoparticles. The FT-IR result indicates that the PAA molecular structure could be hardly influenced by the formation of nanoparticles.

Keywords

silver nanoparticles / poly(amic acid) / ultraviolet-visible spectroscopy / crystallization kinetics

References

[1] YangS Q, WuD Z, QiS L, CuiG H, JinR G, WuZ P. Fabrication of highly reflective and conductive double-surface-silvered layers embedded on polymeric films through all-wet process at room temperature [J]. Journal of Physical Chemistry B, 2009, 113(29): 9694-9701

[2] AndreescuS, NjagiJ, IspasC, RavalliM T. JEM Spotlight: Applications of advanced nanomaterials for environmental monitoring [J]. Journal of Environmental Monitoring, 2009, 11(1): 27-40

[3] Pastoriza-santosI, Liz-MarzanL M. Synthesis of silver nanoprisms in DMF [J]. Nano Letters, 2002, 2(8): 903-905

[4] SunY G, XiaY N. Shape-controlled synthesis of gold and silver nanoparticles[J]. Science, 2002, 298(5601): 2176-2179

[5] ShrivastavaS, BeraT, RoyA, SinghG, RamachandraraoP, DashD. Characterization of enhanced antibacterial effects of novel silver nanoparticles [J]. Nanotechnology, 2007, 18(22): 225103-225111

[6] Pastoriza-SantosI, Liz-MarzanL M. Formation of PVP-protected metal nanoparticles in DMF [J]. Langmuir, 2002, 18(7): 2888-2894

[7] ChenM, WangL Y, HanJ T, ZhangJ Y, LiZ Y, QianD J. Preparation and study of polyacrylamide-stabilized silver nanoparticles through a one-pot process [J]. Journal Of Physical Chemistry B, 2006, 110(23): 11224-11231

[8] AndreescuD, WanekayaA K, SadikO A, WangJ. Nanostructured polyamic acid membranes as novel electrode materials [J]. Langmuir, 2005, 21(15): 6891-6899

[9] OkelloV A, DuN, DengB, SadikO A. Environmental applications of poly (amic acid)-based nanomaterials [J]. Journal of Environmental Monitoring, 2011, 13(5): 1236-1245

[10] DuN, WongC, FuersteinM, SadikO A, UmbachC, BahgatS. Flexible poly (amic acid) conducting polymers: Effect of chemical composition on structural, electrochemical, and mechanical properties[J]. Langmuir, 2010, 26(17): 14194-14202

[11] StrunskusT, GrunzeM, KochendoerferG, WallC. Identification of physical and chemical interaction mechanisms for the metals gold, silver, copper, palladium, chromium, and potassium with polyimide surfaces [J]. Langmuir, 1996, 12(11): 2712-2725

[12] BergmeisterJ J, RancourtJ D, TaylorL T. The synthesis and characterization of magnetic iron-modified polyimide films [J]. Chemistry of Materials, 1990, 2(6): 640-641

[13] SouthwardR E, ThompsonD W. Metal-polyimide nanocomposite films: Single-stage synthesis of silvered polyimide films prepared from silver (I) complexes and BPDA/4, 4′-ODA [J]. Chemistry of Materials, 2004, 16(7): 1277-1284

[14] StclairA K, TaylorL T. A comparison of physical and mechanical properties of polyimide films containing different metal ions [J]. Journal of Applied Polymer Science, 1983, 28(7): 2393-2400

[15] LuJ, MoonK S, XuJ, WongC P. Synthesis and dielectric properties of novel high-K polymer composites containing in-situ formed silver nanoparticles for embedded capacitor applications [J]. Journal of Materials Chemistry, 2006, 16(16): 1543-1548

[16] QiL, LeeB I, ChenS, SamuelsW D, ExarhosG J. High dielectric constant silver-epoxy composites as embedded dielectrics [J]. Advanced Materials, 2005, 17(14): 1777-1781

[17] ShenY, LinY, LiM, NanC W. High dielectric performance of polymer composite films induced by a percolating interparticle barrier layer [J]. Advanced Materials, 2007, 19(10): 1418-1422

[18] Pastoriza-SantosI, Liz-arzanL M. Formation and stabilization of silver nanoparticles through reduction by N, N-dimethylformamide [J]. Langmuir, 1999, 15(4): 948-951

[19] MannaS, BatabyalS K, NandiA K. Preparation and characterization of silver-poly (vinylidene fluoride) nanocomposites: Formation of piezoelectric polymorph of poly (vinylidene fluoride) [J]. Journal of Physical Chemistry B, 2006, 110(25): 12318-12326

[20] PradellT, CrespoD, ClavagueraN, Clavaguera-MoraM T. Diffusion controlled grain growth in primary crystallization: Avrami exponents revisited [J]. Journal of Physics-Condensed Matter, 1998, 10(17): 3833-3844