A new kind of CdS-hyperbranched poly (arylene ether ketone) (HP-PAEK) nanocomposite was prepared in dimethylformamide solution by carboxylic-functionalised HP-PAEK as surface modifier without ligand exchange. The CdS/HP-PAEK nanocomposites were characterised through ultraviolet–visible and photoluminescence spectroscopy. The experimental results of photoluminescence measurement showed that the nanocomposites had obvious luminescence properties. The formation and size of CdS quantum dots were determined by Fourier transform infrared spectroscopy and transmission electron microscopy. The thermal properties of CdS/HP-PAEK nanocomposites were analysed by differential scanning calorimetry and thermogravimetric analysis. Owing to the introduction of CdS nanoparticles, the nanocomposites exhibited excellent heat resistance and higher fluorescent quantum efficiency.
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