Molecular Characteristics of Star-Like Polyvinylpyrrolidone with Fullerene C60 as the Branching Site in Dilute Solutions
| Autor: | S. N. Bokov, I. I. Zaitseva, O. V. Nazarova, E. F. Panarin, E. V. Afanas’eva, C. Ebel, E. V. Korneeva, N. A. Mikhailova, L. S. Litvinova, Georges M. Pavlov |
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| Rok vydání: | 2005 |
| Předmět: |
chemistry.chemical_classification
Fullerene Polyvinylpyrrolidone Chemistry General Chemical Engineering General Chemistry Polymer Branching (polymer chemistry) Condensed Matter::Soft Condensed Matter Ultraviolet visible spectroscopy Polymer chemistry Physics::Atomic and Molecular Clusters medicine Physical chemistry Molecule Svedberg medicine.drug Macromolecule |
| Zdroj: | Russian Journal of Applied Chemistry. 78:130-136 |
| ISSN: | 1608-3296 1070-4272 |
| DOI: | 10.1007/s11167-005-0244-9 |
| Popis: | Star-like water-soluble macromolecules with fullerene as the branching site were synthesized by the reaction of fullerene C60 with polyvinylpyrrolidone whose molecules contain one terminal primary amino group. The initial and C60-containing polymers were studied by UV spectroscopy, thin-layer chromatography, centrifugal sedimentation, translation diffusion, and viscometry in aqueous buffer solutions. Diffusion-sedimentation and sedimentation two-detector analyses of the initial and fullerene-containing samples were performed. The molecular weights of the polymers were estimated by the Svedberg equation. The proportion of the fullerene-containing segment in the samples synthesized was determined, and the number of the branches in the fullerene-containing macromolecules was estimated. |
| Databáze: | OpenAIRE |
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