期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 18, 期 46, 页码 14725-14731出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201200707
关键词
chirality; hydrogels; self-assembly; soft materials; supramolecular chemistry
资金
- Spanish Ministry of Science and Innovation [CTQ2009-13961, CTQ2009-10098]
- Junta of Andalucia [P09-FQM-4708]
- Universitat Jaume I-Bancaixa [P1.1B2009-42]
- Generalitat Valenciana
- Henkel Adhesives Ltd
- Engineering and Physical Sciences Research Council [EP/G067538/1] Funding Source: researchfish
- EPSRC [EP/G067538/1] Funding Source: UKRI
A chiral bisurea-based superhydrogelator that is capable of forming supramolecular hydrogels at concentrations as low as 0.2 mM is reported. This soft material has been characterized by thermal studies, rheology, X-ray diffraction analysis, transmission electron microscopy (TEM), and by various spectroscopic techniques (electronic and vibrational circular dichroism and by FTIR and Raman spectroscopy). The expression of chirality on the molecular and supramolecular levels has been studied and a clear amplification of its chirality into the achiral analogue has been observed. Furthermore, thermal analysis showed that the hydrogelation of compound 1 has a high response to temperature, which corresponds to an enthalpy-driven self-assembly process. These particular thermal characteristics make these materials easy to handle for soft-application technologies.
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