Trace Ir(III) complex enhanced aggregation-induced electrochemiluminescence (AIECL) of poly-tetraphenylethene (pTPE) in aqueous media was investigated for the first time. The poly-TPE end-capped by Ir(III) complex (Ir@pTPE) and its corresponding model polymer poly-TPE (Ph@pTPE) could be synthesized by Suzuki coupling polymerization reaction of 1,2-bis(4-bromophenyl)- 1,2-diphenylethene (M-1) with 1,2-diphenyl-1,2-bis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethene (M-2) and the continuous Suzuki coupling end-capped reaction of poly-TPE-pinacol boronate with (pq)2Ir(pico)Br and bromobenzene, respectively. Subsequently, the corresponding Ir@pTPE Pdots and Ph@pTPE Pdots encapsulated with poly(styrene- co-maleicanhydride) (PSMA) could be obtained by nanoprecipitation method. Compared with Ph@pTPE Pdots, the Ir@pTPE Pdots with a trace amount of Ir(III) complex (1.34‰ of Ir(III) content, wt) could exhibit 9.9-fold enhancement of the electrochemiluminescence (ECL) signal for visual emission. This work provided a novel strategy on designing highly efficient ECL materials based on trace Ir(III)-end capping AIE-active polymer dots. electrochemiluminescence, aggregation-induced emission, Ir(III) complex, polymer dots

首次研究了水性介质中痕量Ir（III）配合物增强的聚四苯乙烯（pTPE）的聚集诱导的电化学发光（AIECL）。Ir（III）配合物封端的聚TPE（Ir @ pTPE）及其相应的模型聚合物聚TPE（Ph @ pTPE）可以通过1,2-双（4-溴苯基）的Suzuki偶联聚合反应合成-1,2-二苯基乙烯（M-1）与1,2-二苯基-1,2-双（4-（4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基）苯基乙烯（M-2）和聚TPE-频哪醇硼酸酯分别与（pq）2Ir（pico）Br和溴苯的连续Suzuki偶联封端反应。随后，可以通过纳米沉淀法获得相应的用聚苯乙烯-顺丁烯二酸酐（PSMA）封装的Ir @ pTPE Pdots和Ph @ pTPE Pdots。与Ph @ pTPE Pdots相比，具有痕量Ir（III）配合物（Ir（III）含量的1.34‰，wt）的Ir @ pTPE Pdots可以显示可见光的电致发光（ECL）信号增强9.9倍。这项工作为基于痕量Ir（III）端帽AIE活性聚合物点设计高效ECL材料提供了一种新颖的策略。电化学发光，聚集诱导发射，Ir（III）络合物，聚合物点