Abstract
A segmented copolymer of waterborne polyurethane (WPU) was used for the first time to synthesize silver nanostructures in the indoor circumstance. The soft segment of WPU served as a reducing agent of silver ions, whereas WPU hard segments could act as templates for the synthesis of silver nanorods. Silver nanorods and the simultaneously formed nanoparticles were characterized by the combination of scanning electron microscopy (SEM), powder X-ray diffraction spectroscopy (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and UV−visible spectroscopy, indicating the kinetically controlling mechanism of WPU. However, these imply that a soft, solution-phase approach based on the segmented copolymer represents a simple, novel route to the synthesis of Ag nanorods.
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