作者:Xin Wen、Dongxin Zhang、Tianci Ren、Jinchong Xiao、Yonggang Wu、Libin Bai、Xinwu Ba
DOI:10.1016/j.dyepig.2016.10.037
日期:2017.2
A series of novel hyperbranchedpolymers BF2-HP(1–4) containing difluoroboron-diketonate complexes and truxeneunits have been synthesized. To achieve the target polymers, the precursors Boc-HP(1–4) were obtained through the Pd (0)-catalyzed Suzuki polymerization with an “A2 + B3” or “A2 + B2 + B3” approach in different molar ratios. After the deprotection of Boc-groups, the reaction with BF3 gave
合成了一系列新型的超支化聚合物BF 2 -HP(1-4),其中包含二氟硼-二酮硼酸酯络合物和丁烯单元。为了实现该目标的聚合物,前体的Boc-HP(1 - 4)通过所述的Pd(0)获得催化的铃木聚合用“A 2 + B 3 ”或“A 2 + B 2 + B 3 ”的方法在不同的摩尔比。Boc-基团脱保护后,与BF 3反应得到聚合物BF 2 -HP(1-4)。新高炉2与不含聚合物的聚合物相比,含聚合物的UV-vis吸收和发射呈现红移。所述的可调谐的超支化结构BF 2 -HP(1 - 4)导致不同的光学性质。随着BF 2 - HP(1–4),氯仿溶液中的发射峰呈现出明显的蓝移,而在薄膜中观察到红移。值得注意的是,不仅在不良溶剂(如DMF)中,而且在薄膜状态下,超支化体系结构都比线性体系结构更有效地抑制聚集。另外,这些聚合物显示出高的热稳定性,并在普通有机溶剂中具有良好的溶解性。
Improved AIE‐Active Probe with High Sensitivity for Accurate Uranyl Ion Monitoring in the Wild Using Portable Electrochemiluminescence System for Environmental Applications
sensitive and selective uranylion (UO22+) probes has attracted significant attention owing to the threat to human health caused by high toxicity, radioactivity, and long half‐life. Herein, the development of aggregation‐induced emission (AIE) active polymer dots (Pdots) is described for an accurate UO22+ monitoringusing a portableelectrochemiluminescence (ECL) system. An AIE‐active polymer containing