Jianbing Shi, Yanmei Wu, Shu Sun, Bin Tong, Junge Zhi and Yuping Dong Tunable fluorescence conjugated copolymers consisting of tetraphenylethylene and fluorene units: From aggregation-induced emission enhancement to dual-channel fluorescence response Journal of Polymer Science Part A: Polymer Chemistry 51
A series of novel conjugated polymers PTPExFy have been synthesized, which have aggregation-induced emission enhancement (AIEE) and dual-channel fluorescence response (DCFR) when they are aggregated in solution. The AIEE and DCFR properties are related to the tetraphenylethylene (TPE)-to-fluorene ratio in the polymer backbone and can be attributed to the different responses of the fluorene segments and the TPE segments to aggregation. The fluorene segments have an aggregation-caused quenching characteristic, whereas the TPE segments have an aggregation-induced emission characteristic.
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