Control of the aggregation behavior of silver nanoparticles in polyurethane matrix
Source abstract
Abstract
By using N,N-dimethylformamide (DMF) as a solvent and reducing agent, and polyurethane (PU) as a structure-directing agent, flexible silver nanochains are formed under mild conditions with mean diameter of 15.97 and 35.6 nm, respectively. Some linear chain-like aggregates of silver nanoparticles with mean diameter of 6.69 nm are also formed by controlling the experimental condition. In parallel experiment, silver nanospheres with mean diameters of 5.76 nm, instead of nanochains are generated when antioxidants are added. After 3 days of aging, some nano clusters are transformed into triangular or hexagonal nanoplates. This aggregation behavior was characterized by UV–Vis spectroscopy, TEM, and powder X-ray diffraction. The aggregation mechanism of silver nanoparticles in the PU and ATPU was discussed. Our results provide potential application for new generation of nanodevice.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanoparticles: synthesis and applications · Gold and Silver Nanoparticles Synthesis and Applications · Nanotechnology research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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