Supramolecular gelator based on a [c2]daisy chain rotaxane: efficient gel-solution transition by ring-sliding motion |
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Authors: | Tao Rongrong Zhang Qi Rao Sijia Zheng Xiuli Li Mingming Qu Dahui |
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Abstract: | A supramolecular gelator based on the bistable [c2]daisy chain rotaxane is designed and synthesized. The reversible actuation of the [c2]daisy chain renders the formed supramolecular gel with acid/base-responsive switching between gel and monomer solution. The efficient switching process is attributed to the ring-sliding effect of the rotaxane in response to acid/base stimuli.The ring-inhibited hydrogen bonding stacking results in a nearly quantitatively disassembly of the gel network after addition of base which is hard to be realized by traditional heating strategy in hydrogen-bonding-supported gel. |
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