Well-Organized CdS/C₆₀ in Block Copolymer Micellar Cores

다국어 초록 (Multilingual Abstract)

<P>CdS nanoparticles of 4.5 nm diameter were synthesized in poly(2-vinylpyridine) micellar cores which were obtained by solvating a polystyrene-block-poly(2-vinylpyridine) block copolymer in polystyrene-selective toluene. Then, a C<SUB>60</SUB>-toluene solution was dispersed into the CdS micelle solution with stirring. This led to the well-defined organization of two different nanoparticles; specifically: a CdS NP decorated by several/dozens of C<SUB>60</SUB> molecules, because C<SUB>60</SUB> molecules were strongly coordinated with pyridine molecules in the micellar cores by charge-transfer complexation C<EM><SUB>60</SUB><SUP>δ−</SUP></EM>–P2VP<SUP>δ+</SUP>. A harmoniously organized CdS/C<SUB>60</SUB> micellar structure was clearly verified by transmission electron microscopy. Fluorescent quenching of CdS nanoparticles, which was strongly affected by neighboring C<SUB>60</SUB> molecules, was observed.</P><P>
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<B>Graphic Abstract</B>
<P>C<SUB>60</SUB> molecules were successfully incorporated into free pyridines of CdS-containing poly(2-vinylpyridine) cores of polystyrene-block-poly(2-vinylpyridine) micelles by charge-transfer complexation between C<SUB>60</SUB> molecules and free pyridines. CdS and C<SUB>60</SUB> are shown to be harmoniously well-organized in a micellar core.
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