Versatile Strategy for Multi-Stimuli-Responsive Fluorescent Material Based on Cross-Linking-Induced Emission. Application in Encryption

Abstract
Versatile strategy for smart fluorescent materials is lacking due to their diverse responding mechanisms and incompatibility of responsive behaviors. Herein presents an adaptable strategy toward multi-stimuli-responsive fluorescent material with stage-by-stage responsive behavior by blending linear polymers modified with different stimulus-responsive moieties and AIE cross-linker. Under stimuli, the linear polymer can cross-link with the cross-linker to form networks, which intrinsically restrict the intramolecular rotation of the AIE molecule to induce strong emission. A unified stimuli-responsive mechanism is involved in that various stimuli are transferred through the organized "stimulus-crosslink-emission" process. This strategy ensures the compatibility of different stimuli-responses and the adjustability of stimulus-response behavioral logic. These multi-stimuli-responsive fluorescent materials have exhibited strong accessibility and adaptability for information encryption.

Citation
Jiang, Y., Ma, J., Ran, Z., Zhong, H., Zhang, D., & Hadjichristidis, N. (2022). Versatile Strategy for Multi-Stimuli-Responsive Fluorescent Material Based on Cross-Linking-Induced Emission. Application in Encryption. Angewandte Chemie. Portico. https://doi.org/10.1002/ange.202208516

Acknowledgements
We gratefully acknowledge financial support from the National Natural Science Foundation of China (52103016,51873233), Innovation Group of National Ethnic Affairs Commission of China (MZR20006), and the South-Central Minzu University (YZZ19002). N.H. acknowledges the support of KAUST.

Publisher
Wiley

Journal
Angewandte Chemie

DOI
10.1002/ange.202208516
10.1002/anie.202208516

Additional Links
https://onlinelibrary.wiley.com/doi/10.1002/ange.202208516

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