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Colloid and Polymer Science
Erschienen in: Colloid and Polymer Science 4/2011

01.02.2011 | Original Contribution

Chemical synthesis and optical properties of CdS–poly(lactic acid) nanocomposites and their transparent fluorescent films

verfasst von: Cai-Feng Wang, He-Yi Xie, Yu-Peng Cheng, Li Chen, Michael Z. Hu, Su Chen

Erschienen in: Colloid and Polymer Science | Ausgabe 4/2011

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Abstract

This paper describes the first synthesis of cadmium sulfide (CdS)-poly(lactic acid) (PLA) nanocomposites and their transparent fluorescent films by covalently grafting PLA onto the surfaces of CdS nanocrystals (NCs). Synthesis of the nanocomposites involved two steps. Lactic acid (LA)-capped CdS NCs were first prepared by reacting cadmium chloride (CdCl2) with sodium sulfide (Na2S) using LA as the organic ligand in H2O/N,N-dimethylformamide (DMF) solution. CdS–PLA nanocomposites were then formed by in situ ring-opening polymerization of lactide on the surface of modified CdS NCs. We also demonstrated herein the fabrication of the transparent fluorescent films of CdS–PLA nanocomposites by blending as-prepared nanocomposites with high-molecular-weight PLA. The as-prepared CdS NCs and their nanocomposites were studied by transmission electron microscopic imaging, thermogravimetric analyses, and spectroscopic measurements (ultraviolet–visible absorption and photoluminescence). The results revealed that the CdS–polymer nanocomposites exhibited good optical properties in terms of their photoluminescence and transparency.
Vorheriger Artikel Synthesis and characterization of a hybrid material from self-assembling colloidal particles and carbon nanotubes
Nächster Artikel Stable titanium dioxide grafted with poly [N-(p-vinyl benzyl) phthalimide] composite particles in suspension for electrophoretic displays

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Metadaten
Titel
Chemical synthesis and optical properties of CdS–poly(lactic acid) nanocomposites and their transparent fluorescent films
verfasst von
Cai-Feng Wang
He-Yi Xie
Yu-Peng Cheng
Li Chen
Michael Z. Hu
Su Chen
Publikationsdatum
01.02.2011
Verlag
Springer-Verlag
Erschienen in
Colloid and Polymer Science / Ausgabe 4/2011
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-011-2377-0

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