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Synthesis of silver nanoparticles in melts of amphiphilic polyesters

机译：两亲聚酯熔体中纳米银的合成。

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The current work presents a one-step procedure for the synthesis of amphiphilic silver nanoparticles suitable for production of silver-filled polymeric materials. This solvent free synthesis via reduction of Tollens' reagent as silver precursor in melts of amphiphilic polyesters consisting of hydrophilic poly(ethylene glycol) blocks and hydrophobic alkyl chains allows the production of silver nanoparticles without any by-product formation. This makes them especially interesting for the production of medical devices with antimicrobial properties. In this article the influences of the chain length of the hydrophobic block in the amphiphilic polyesters and the process temperature on the particle size distribution (PSD) and the stability of the particles against agglomeration are discussed. According to the results of spectroscopic and viscosimetric investigations the silver precursor is reduced to elemental silver nanoparticles by a single electron transfer process from the poly(ethylene glycol) chain to the silver ion.
机译：当前的工作提出了一种一步法合成适合制造银填充聚合物材料的两亲性银纳米粒子。通过在包含亲水性聚乙二醇嵌段和疏水性烷基链的两亲性聚酯熔体中还原Tollens试剂作为银前体，可以实现无溶剂合成，从而无需任何副产物形成即可生产银纳米颗粒。这使它们对于生产具有抗菌性能的医疗器械特别有趣。在本文中，讨论了两亲性聚酯中疏水嵌段的链长和工艺温度对粒度分布（PSD）和颗粒抗附聚稳定性的影响。根据光谱和粘度研究的结果，通过从聚乙二醇链到银离子的单电子转移过程，将银前体还原为元素银纳米颗粒。

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