Abstract
We report the synthesis and structural studies of ZnS and CdS nanoparticles in polyvinylpyrrolidone (PVP), poly(vinyl alcohol) (PVA), and poly(methyl methacrylate) (PMMA) matrices. The metal sulfides/polymer nanocomposites were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy, electronic spectroscopy (UV-Vis), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA). The particle sizes as calculated from the absorption spectra were in agreement with the results obtained from TEM and XRD data. They showed metal sulfides nanoparticles in the polymers matrices with average crystallite sizes of 1.5–6.9 nm. The TGA results indicate that incorporation of the nanoparticles significantly altered the thermal properties of the respective polymers with ZnS/PVA and CdS/PVA nanocomposites displaying higher thermal stability than the other polymer nanocomposites.
Highlights
Nanocomposites are the fusion of two or more different materials in which at least one of the components has dimension less than 100 nm [1]
We investigate the structural and thermal properties of different polymer nanocomposites prepared by the incorporation of ZnS and CdS into the matrices of theses polymers: poly(methyl methacrylate) (PMMA), poly(vinyl alcohol) (PVA), and polyvinylpyrrolidone (PVP)
ZnS and CdS were incorporated into PMMA, PVA, and PVP matrices to form corresponding metal sulfides/polymer nanocomposites
Summary
Nanocomposites are the fusion of two or more different materials in which at least one of the components has dimension less than 100 nm [1]. ZnS/CdS nanoparticles in PMMA, PVA, and PVP. We investigate the structural and thermal properties of different polymer nanocomposites prepared by the incorporation of ZnS and CdS into the matrices of theses polymers: poly(methyl methacrylate) (PMMA), poly(vinyl alcohol) (PVA), and polyvinylpyrrolidone (PVP). The ZnS/PMMA and CdS/PMMA nanocomposites showed stretching vibrations that are not really different from the pure PMMA and this is indicative of weak chemical interaction between the host polymer and the nanoparticles. The absorption band at cm−1 due to C=C stretching in the PVA appears at 1659 and 1653 cm−1 in the ZnS/PVA and CdS/PVA nanocomposites, respectively. FTIR spectra of pure PMMA and the respective nanocomposites incorporating ZnS and CdS nanoparticles. Pure PMMA and the corresponding ZnS and CdS nanocomposites show a weak band in the range of 3448–3455 cm−1 that is due to stretching vibration of O-H. The degradation of PMMA usually begins with the initiation at the weak head-to-head linkage at 171.12∘ C [35],
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
