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Oxidation-Induced Fluorescence Turn-on Approach for Non-Luminescence Flexible Polyimide Films

Abstract

To develop stimuli-responsive polymer with highly comprehensive properties, sulfide-containing polyimides with relatively simple structures were designed and synthesized. The polyimides were found to have infrequent oxidation-induced fluorescence turn-on effect by being soaked in hydrogen peroxide (H2O2). The high contrast ratios of fluorescence quantum yield, from not being detected to up to 9.1 %, were observed before and after reacting with H2O2. Varied emission wavelength could be achieved by tailoring the monomer structure. This H2O2-sensitive phenomenon is believed to be the result of the inhibition of charge-transfer effects in the polyimide molecular structure by turning sulfide (the donor) into sulfone (the acceptor) in the diamine moiety. Furthermore, these tough and thermally stable polyimide films accomplished fluorescence turn-on characteristic without sacrificing their original comprehensive performance of good flexibility and transparency, indicating their potentials in high-performance H2O2 sensor, data security and anti-counterfeit materials.

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Publication details

The article was received on 02 May 2017, accepted on 30 Jun 2017 and first published on 03 Jul 2017


Article type: Paper
DOI: 10.1039/C7TC01894K
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    Oxidation-Induced Fluorescence Turn-on Approach for Non-Luminescence Flexible Polyimide Films

    Z. X. Zhou, W. Huang, Y. Long, Y. Chen, Q. Yu, Y. Zhang, S. Liu, Z. Chi, X. Chen and J. Xu, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC01894K

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