Department of Chemistry, Zhejiang University, Hangzhou, 310027, P.R. China.
Adv Mater. 2012 Jan 17;24(3):362-9. doi: 10.1002/adma.201103220. Epub 2011 Dec 12.
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.
设计并制备了一种交联超分子聚合物网络凝胶，该凝胶表现出由 pH 值、温度、阳离子浓度和金属配位变化引起的可逆凝胶-溶胶转变。凝胶的孔径通过向体系中添加的交联剂的量来控制，并且该材料可以模制成具有形状保持性、弹性行为的独立物体。这些特性都归因于动态可逆的主客体络合作用和交联聚合物网络的良好机械性能。以前没有报道过单一的有机凝胶具有所有这些特性，这使得这种超分子凝胶成为一种前所未有的智能软材料。
