A Novel Conjugated Polymer Consists of Benzimidazole and Benzothiadiazole: Synthesis, Photophysics Properties, and Sensing Properties for Pd2+,Journal of Polymer Science Part A: Polymer Chemistry

当前位置： X-MOL 学术 › J. Polym. Sci. A Polym. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

A Novel Conjugated Polymer Consists of Benzimidazole and Benzothiadiazole: Synthesis, Photophysics Properties, and Sensing Properties for Pd2+
Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2020-01-20 , DOI: 10.1002/pol.20200005
Kuan Liu ₁ , Zijun Hu ₁

Affiliation

A conjugated polymer PPBIBTE based on benzimidazole and benzothiadiazole was synthesized through palladium‐catalyzed sonogashira cross‐coupling reaction. The chemical structures of the monomers and the polymer were indicated by ¹H NMR, and investigation of photophysics properties and sensing optical properties for metal ions were observed by ultraviolet–visible and photoluminescence spectroscopy. PPBIBTE showed remarkable selectivity for Pd²⁺ by “turn‐off” fluorescence sensing progress. In addition, the Stern–Volmer and Benesi‐Hildebrand plots were used to reveal the interaction between the polymer and Pd²⁺, while job's method was applied to calculate the determination of stoichiometry. The results demonstrate that PPBIBTE can utilize static quenching for Pd²⁺ by forming a 1:1 complex. And it is a potential sensing material as fluorescence chemosensor for Pd²⁺ with high selectivity and sensitivity.

中文翻译：

苯并咪唑和苯并噻二唑的新型共轭聚合物：Pd2 +的合成，光物理性质和传感性质

通过钯催化的sonogashira交叉偶联反应合成了基于苯并咪唑和苯并噻二唑的共轭聚合物PPBIBTE。通过¹ H NMR指示单体和聚合物的化学结构，并通过紫外可见光和光致发光光谱观察金属离子的光物理性质和感测光学性质。通过“关闭”荧光传感过程，PPBIBTE对Pd ²⁺具有显着的选择性。此外，使用斯特恩-沃尔默和贝内西-希尔德布兰德图揭示了聚合物与Pd ²⁺之间的相互作用，同时应用了Job方法计算化学计量。结果表明PPBIBTE可以利用静态淬灭Pd通过形成1：1络合物形成²⁺。它是一种用于Pd ^2+的荧光化学传感器的电位传感材料，具有很高的选择性和灵敏度。

更新日期：2020-01-21

点击分享查看原文

点击收藏

阅读更多本刊最新论文