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Multiring-Induced Multicolour Emission: Hyperbranched Polysiloxane with Silicon Bridge for Data Encryption

Abstract

Multicolour emissive nonconventional macromolecular luminogens with aggregation-induced emission have drawn great attention due to their potential applications in a wide range of areas. However, the exploring of efficient synthetic strategies and emission mechanisms still remain challenging. Herein, we report a facile route to synthesis hyperbranched polysiloxane (P1) with adjacent -C=O and -C=C groups. Surprisingly, it not only showed blue emission under white light excitation, but also exhibited multicolour luminescence under different excitation wavelengths. Especially, multiple through-space conjugation rings can be found between the first generation P1 molecules via DFT calculation, combined with its remarkable luminescent properties, we proposed a new luminescence mechanism namely “multiring-induced multicolour emission” (MIE). In addition, the stimuli-response behaviour of P1 as well as its application in data encryption based on the quenching effect to Fe3+ were studied. This work provides a guidance to design and synthesis nonconventional macromolecular AIEgens with multicolour luminescence.

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Supplementary files

Article information


Submitted
10 Feb 2020
Accepted
25 Mar 2020
First published
26 Mar 2020

Mater. Chem. Front., 2020, Accepted Manuscript
Article type
Research Article

Multiring-Induced Multicolour Emission: Hyperbranched Polysiloxane with Silicon Bridge for Data Encryption

Y. Feng, H. Yan, F. Ding, B. Tian, Y. Nie, Y. Zhao, W. Feng and B. Z. Tang, Mater. Chem. Front., 2020, Accepted Manuscript , DOI: 10.1039/D0QM00075B

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