dumbbell with 4,4
0 -methylenebis-(phenylisocyanate). The polymer chains
contained [2]rotaxane were further made into thin films. Intriguingly, the films
display the mechanoluminophore functions. The films exhibited the characteristic
fluorescence of the BTH with the stress increase, owing to the spatial separation of
Fig. 2 Schematic illustration of (a) a bistable [2]rotaxane molecular shuttle, in which the relative
shuttling movement could be driven by pH changes. (b) Immobilization of the [2]rotaxane onto
SiO 2 nanoparticle surfaces [15]. (Adapted with permission [15]. Copyright 2015, Royal Society of
Chemistry.) (c) Introduction of the [2]rotaxane into polymer chains [16]. (Adapted with permission
[16]. Copyright 2016, Royal Society of Chemistry)
5 Photoluminescent Crown Ether Assembly
111
0 -methylenebis-(phenylisocyanate). The polymer chains
contained [2]rotaxane were further made into thin films. Intriguingly, the films
display the mechanoluminophore functions. The films exhibited the characteristic
fluorescence of the BTH with the stress increase, owing to the spatial separation of
Fig. 2 Schematic illustration of (a) a bistable [2]rotaxane molecular shuttle, in which the relative
shuttling movement could be driven by pH changes. (b) Immobilization of the [2]rotaxane onto
SiO 2 nanoparticle surfaces [15]. (Adapted with permission [15]. Copyright 2015, Royal Society of
Chemistry.) (c) Introduction of the [2]rotaxane into polymer chains [16]. (Adapted with permission
[16]. Copyright 2016, Royal Society of Chemistry)
5 Photoluminescent Crown Ether Assembly
111