NMR study of the gelation of a designed gelator |
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Authors: | Brand Torsten Nolis Pau Richter Sven Berger Stefan |
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Institution: | Institute of Analytical Chemistry, University of Leipzig, Linnéstrasse 3, D-04103 Leipzig, Germany. |
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Abstract: | The gelation of a designed gelator was investigated by different NMR methods, which showed a clear thermal hysteresis. Two very simple approaches for the NMR determination of the gelation point are suggested. One involves the observation of the NMR integral, and the other records the ratio of the diffusion coefficients between the gelator and the solvent. Differential behavior of the gelator protons are interpreted as a hint that a part of the gelator molecule might still be flexible as in the dissolved state. |
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Keywords: | thermoreversible gelation diffusion NMR mobility |
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