A Dual-Responsive Supramolecular Polymer Gel Formed by Crown Ether Based Molecular Recognition


  • This work was supported by the National Natural Science Foundation of China (20774086, 20834004), the Fundamental Research Funds for the Central Universities (2010QNA3008), the MOE Key Laboratory of Macromolecular Synthesis and Functionalization of Zhejiang University (2010MSF02), and the Zhejiang Provincial Natural Science Foundation of China (R4100009).


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A host–guest recognition motif based on a crown ether moiety was employed to construct a supramolecular polymer gel from a low molecular weight A–B monomer. Reversible thermo- and pH-induced gel–sol transitions of the dual-responsive gel are demonstrated for the controlled release of rhodamine B.