Light Scattering Study of Aqueous Poly(Vinyl)pyrrolidone–Fullerene C70 Solutions
| Autor: | I. A. Baranovskaya, Vladimir Aseyev, Elvira Tarassova, Heikki Tenhu, Stanislav I. Klenin |
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| Rok vydání: | 2005 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Fullerene Materials science Diffusion Organic Chemistry Intermolecular force 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Atomic and Molecular Physics and Optics Light scattering 0104 chemical sciences Dynamic light scattering chemistry Physical chemistry Molecule General Materials Science Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Fullerenes, Nanotubes and Carbon Nanostructures. 12:349-352 |
| ISSN: | 1536-4046 1536-383X |
| DOI: | 10.1081/fst-120027191 |
| Popis: | It was shown by static and dynamic light scattering that poly(vinyl)pyrrolidone (PVP) molecules form large intermolecular complexes (clusters) with C70 in aqueous solutions. The molecular weights and dimensions of PVP–C70 clusters increase both with the increase of fullerene content and the molecular weight of the matrix PVP. However, two different diffusion coefficients were detected by dynamic light scattering. The slow mode was explained as diffusion of large PVP–C70 clusters. The fast mode represents free PVP molecules in solution. Dimensions of clusters revealed in aqueous PVP–C70 solutions are less than that for PVP–C60 by factor of 2.5–3. |
| Databáze: | OpenAIRE |
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