期刊
POLYMERS
卷 6, 期 9, 页码 2332-2344出版社
MDPI
DOI: 10.3390/polym6092332
关键词
ZnS; CdS; HgS; poly(methyl methacrylate); nanocomposites; synthesis; characterization
资金
- Govan Mbeki Research and Development Centre), University of Fort Hare, South Africa
- Electricity Supply Commission, South Africa tertiary education support program
The synthesis and characterization of ZnS/PMMA (poly(methyl methacrylate)), CdS/PMMA and HgS/PMMA nanocomposites are presented. Hexadecylamine (HDA)-capped ZnS, CdS and HgS nanoparticles were synthesized using dithiocarbamate single molecule precursors at 180 degrees C. FTIR (Fourier transform infrared spectroscopy) spectra measurement confirmed the dispersion of the metal sulfide nanoparticles in the PMMA matrices to form the metal sulfides/PMMA nanocomposites. Powder X-ray diffraction confirmed the presence of the amorphous PMMA in the nanocomposites. The ZnS and HgS particles were indexed to the cubic phase, while the HgS particles correspond to the hexagonal phase. Thermogravimetric analyses showed that the metal sulfide nanocomposites are thermally more stable than their corresponding precursor complexes. The TEM (Transmission electron microscope) analyses revealed that the ZnS nanoparticles have a particle size of 3-5 nm; the crystallite size of the CdS nanoparticles is 6-12 nm, and HgS nanoparticles are 6-12 nm.
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