Abstract
We designed and prepared a supramolecular assembly-induced emission enhancement supramolecular polymer (PyP5⊂S2NH2) via rational combination host−guest and π−π stacking interactions between pyrene-functionalized pillar[5]arene host (PyP5) and the bis(dialkylammonium salt)-based BB type guest (S2NH2). With the increasing concentration of S2NH2 and PyP5, the structures of PyP5⊂S2NH2 transformed from linear to cross-linked networks. Moreover, PyP5⊂S2NH2 can be sensitive to multiple stimuli, including temperature, redox, UV-light, pH, solvent polarity, organometallic compound, and competitive guest. This work paves the way to develop fluorescent supramolecular polymers with multi-stimuli-responsive properties via facilely supramolecular approaches.
Published Version
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