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Published on: September 13, 2024
Pyrene boronic acid cyclic ester: a new fast self-recovering mechanoluminescent material at room temperature
Taisheng Wang1, Na Zhang1, Ke Zhang1
1CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China. bairk@ustc.edu.cn.
Abstract:
Two pyrene boronic acid cyclic esters, PPB and NPB, were prepared and their solid state fluorescence properties were investigated. Interestingly, the results showed that PPB with a 5-membered ring possessed reversible mechanoluminescence and vapochromic behaviour with a fast self-recovering ability at room temperature, whereas NPB with a 6-membered ring did not. It was demonstrated that the mechanically responsive fluorescence properties of PPB and NPB were highly related to the molecular packing mode and the solid state plasticity.
