Journal
ADVANCED MATERIALS
Volume 24, Issue 3, Pages 362-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201103220
Keywords
crown compounds; sol-gel processes; elastomers; host-guest systems; supramolecular chemistry
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Funding
- National Natural Science Foundation of China [20834004, 91027006]
- Fundamental Research Funds for the Central Universities [2010QNA3008]
- National Basic Research Program [2009CB930104]
- Zhejiang Provincial Natural Science Foundation of China [R4100009]
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A cross-linked supramolecular polymer network gel is designed and prepared, which shows reversible gel-sol transitions induced by changes in pH, temperature, cation concentration, and metal co-ordination. The gel pore size is controlled by the amount of cross-linker added to the system, and the material can be molded into shape-persistent, free-standing objects with elastic behavior. These features are all due to the dynamically reversible host-guest complexation and good mechanical properties of the cross-linked polymer network. No single organogel has previously been reported to possess all of these features, making this supramolecular gel an unprecedentedly intelligent soft material.
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