Synthesis of poly(vinylene‐arsine)s‐stabilized silver nanoparticles

Abstract

Stabilization of poly(vinylene-arsine)s (1) towards silver nanoparticles was carried out to estimate the coordination and protecting ability of phenyl-substituted poly(vinylene-arsine) (1a) and methyl-substituted poly(vinylene-arsine) (1b). In the presence of 1 in 1 : 1 ratio with AgNO 3 , colloidal solutions were obtained. The methyl-substituted poly(vinylene-arsine) (1b) is a better stabilizer for silver nanoparticles in N,N-dimethylformamide owing to its less bulky structure than the phenyl-substituted poly(vinylene-arsine) (1a).

Shape‐directed platinum nanoparticle synthesis: nanoscale design of novel catalysts

“…[51] Early reports of this method go as far back as 1857 [52][53][54][55][56] and can be used in systems of gold, [57][58][59] palladium, [60][61][62] cobalt [63] and silver. [64,65] Some of the earliest reports of Pt shape direction using WCR were reported in 1941 by Rampino and Nord [66] and then later by El-Sayed in 1996, [67] but modifications and variations of these syntheses are still being developed today to design catalyst materials with enhanced properties.…”

Organic Arsenicals as Functional Motifs in Polymer and Biomaterials Science

“…Finally, the coordination ability between As and transition metals has been exploited for stabilization of colloidal dispersions of silver nanoparticles (AgNPs) Figure 5. [55] In the absence of the poly(vinylene-arsine) polymers, reduction of AgNO 3 in dimethylformamide (DMF) resulted in deposition of silver metal. However, in a 1:1 ratio of AgNO 3 :poly(vinylenearsine), colloidal dispersions were obtained as confirmed by the surface plasmon absorption band at ≈400 nm in the UV-vis spectra of the resulting solutions.…”

“…At a ratio of Ru:As = 1:2, up to 20% of the arsine units in the polymers derived from (MeAs) 5 were bound to Ru‐complexes, and no coordination was reported for polymers derived from (PhAs) 6 . Finally, the coordination ability between As and transition metals has been exploited for stabilization of colloidal dispersions of silver nanoparticles (AgNPs) Figure . In the absence of the poly(vinylene‐arsine) polymers, reduction of AgNO 3 in dimethylformamide (DMF) resulted in deposition of silver metal.…”

“…UV–vis and TEM confirm the presence of AgNPs within 0.5 h. Scale bar = 200 nm. Reproduced with permission . Copyright 2010, John Wiley & Sons.…”

Ag‐nanoparticle embedded p(AA) hydrogel as an efficient green heterogeneous Nano‐catalyst for oxidation and reduction of organic compounds

“…[6] However, the aggregation of these nanoparticles due to their high surface charge and surface to volume ratio, decreases their surface area, [7] which results in a decrease in their catalytic activity. [8] To overcome this problem, silver NPs are usually loaded or dispersed in a solid matrix, such as polymeric matrices e.g.…”