Structural and morphological studies of the dipeptide based L-Pro-L-Val organocatalytic gels and their rheological behaviour
| Autor: | Juan F. Miravet, Beatriu Escuder, Ian W. Hamley, Francisco Rodríguez-Llansola, Wayne Hayes |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Col·loides
Dipeptide Dipeptide sequence L -Pro- L -Val Nitromethane Gels (Farmàcia) Chemistry Supramolecular chemistry General Chemistry Supramolecular gels Condensed Matter Physics Toluene Catalysis Enamine chemistry.chemical_compound Polymer chemistry Organic chemistry Molecule Acetonitrile Organocatalytic gels |
| Zdroj: | Repositori Universitat Jaume I Universitat Jaume I |
| Popis: | Organocatalytic gels based on the dipeptide sequence L-Pro-L-Val have been studied by two different FTIR techniques. This suggests a different arrangement of the gelator molecules in the self-assembled fibers depending on the organic solvent employed. In acetonitrile and nitromethane the structure of the supramolecular aggregates is similar and provides similar catalytic properties (supramolecular enhancement of basicity). In contrast, the self-assembled fibers obtained in toluene clearly presented a different molecular arrangement consistent with its different catalytic behaviour (enamine-based catalysis). In addition these gels have been studied by microscopy and rheology. |
| Databáze: | OpenAIRE |
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