would result in the destruction of the linear supramolecular polymer by the formation
of host-guest complexation. Moreover, due to the strong charge transfer from the
electron-rich pillar[5]arene and electron-poor guest molecule, the fluorescence could
be quenched. The external temperature could also induce the reversible sol-gel
transition, as well as the reversible change in the fluorescence emission.
Fig. 16 Schematic of the formation of polyrotaxanes and sol-gel transformation reported by Wang
and coworkers. (Reprinted with permission from Ref. [20]. Copyright © 2016. Royal Society of
Chemistry)
13 Pillararene-Based Supramolecular Polymer
363
of host-guest complexation. Moreover, due to the strong charge transfer from the
electron-rich pillar[5]arene and electron-poor guest molecule, the fluorescence could
be quenched. The external temperature could also induce the reversible sol-gel
transition, as well as the reversible change in the fluorescence emission.
Fig. 16 Schematic of the formation of polyrotaxanes and sol-gel transformation reported by Wang
and coworkers. (Reprinted with permission from Ref. [20]. Copyright © 2016. Royal Society of
Chemistry)
13 Pillararene-Based Supramolecular Polymer
363