Abstract The synthesis and optical studies of a new chiral binaphthyl-based polymeric sensor are described herein. The polymers were prepared using the copper-catalyzed azide–alkyne cycloaddition reaction between fluorene and binaphthyl monomeric units. Resulted polymers differ in the orientation of the 1,2,3-triazole unit as a linker in polymeric backbone based on monomeric character. The responses of these polymers to both exposure to metal ions and the acidic medium were investigated by UV–vis absorbance, circular dichroism and fluorescence analysis. The changes in the absorption, chiroptical and fluorescence properties of the polymers indicate a change of the dihedral angle between the two naphthalene units on the binaphthyl moiety and tunability in conjugation. Moreover, an influence of regioselectivity of 1,2,3-triazole unit in polymer backbone in regards to complexation was discussed. The modulation in signal was detected in real time and makes this system a suitable candidate for further applications as an ion sensor or acid-responsive material.

中文翻译：

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基于轴向手性 2,2'-连接的 1,1'-联萘共聚物中 1,2,3-三唑单元对离子和酸响应性的区域选择性的可调特性

摘要 本文描述了一种新型手性联萘基聚合物传感器的合成和光学研究。聚合物是使用铜催化的芴和联萘单体单元之间的叠氮-炔环加成反应制备的。基于单体特性，所得聚合物在作为聚合物主链中的连接体的 1,2,3-三唑单元的取向方面有所不同。通过紫外-可见光吸收、圆二色性和荧光分析研究了这些聚合物对暴露于金属离子和酸性介质的反应。聚合物的吸收、手性和荧光特性的变化表明联萘部分上的两个萘单元之间的二面角发生了变化，以及共轭的可调性。此外，区域选择性的影响 1,2，讨论了聚合物骨架中的 3-三唑单元在络合方面的作用。实时检测信号调制，使该系统成为进一步应用的合适候选者，如离子传感器或酸响应材料。