The hybrid CdS nanocluster/chelating poly(acrylates-co-2-methylacrylic acid 3-(bis-carboxymethylamino)- 2-hydroxy-propyl ester) microbeads were prepared and characterized in this study. The copolymer microbead was prepared by the method of soap-free emulsion polymerization and then the CdS nanocluster was generated by the chemical deposition method on the surface of copolymer microbead. The size and morphology of the CdS nanoparticles on the surface of the hybrid composites were examined by using UV/vis spectroscope and TEM observation. The mean particle sizes of the CdS nanocluster for all of samples, calculated from Henglein’s empirical curve, is in the range of 3.3 ∼ 5.8 nm, which are approaching to TEM observation. Interestingly, most of the spherical CdS nanoclusters were aggregated in rod-like shapes with a length of around 200 nm when it was oscillated by super sonic energy. Furthermore, the luminescent spectrum of the hybrid nanoparticles exhibits a red-shift from 500 to 520 nm with an accompanying broad band. However, the energy and bandwidth of the CdS PL bands are related to the mole ratio of methyl methacrylate/methyl acrylate (MMA/MA) in copolymer. A higher MMA/MA mole ratio corresponds to a lower intensity and bandwidth. Additionally, in the size quantization effect of the CdS nanocluster disappears as the mean size of the CdS nanocluster exceeds 6 nm in this study.
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The financial support of this research by the National Science Council of the Republic of China under Contract No. NSC93-2216-E-218-001- is gratefully acknowledged.
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An erratum to this article can be found at http://dx.doi.org/10.1007/s10904-007-9102-y
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Wang, CC., Chen, AL. & Chen, IH. Preparation of High Photoluminescent Hybrid Polymer-CdS Nanoparticle with Chelating Functional Polymer. J Inorg Organomet Polym 16, 31–41 (2006). https://doi.org/10.1007/s10904-006-9033-z
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DOI: https://doi.org/10.1007/s10904-006-9033-z