具有金属离子传感能力的普鲁兰衍生聚合物荧光团的两步合成。

IF 4.3 3区 化学 Q2 POLYMER SCIENCE
Ioana-Sabina Trifan, Gabriela Biliuta, Mioara Murariu, Sergiu Coseri
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引用次数: 0

摘要

天然存在于食物、土壤和水中的金属离子存在于环境的各个部分。因此,必须确定那些使用可获得的和经济的方法。本研究提出了一种新的天然聚合物普鲁兰的两步法化学改性方法。该过程产生的大分子衍生物具有显著增加的荧光,使特定金属离子的有效检测。此外,最近合成的聚合物与天然普鲁兰相比表现出明显不同的特征,这是经过化学反应的结果。这些包括荧光的存在和在有机溶剂中的溶解度,这是最初的聚合物所缺乏的。随后详尽的热和光谱分析,合成的聚合物的能力辨别不同的金属离子进行了研究。监测金属离子与普鲁兰衍生物的相互作用,以确定在此过程中荧光猝灭的程度。在所检测的各种阳离子中,所合成的聚合物对Fe3+和Cu2+表现出最大的敏感性,而Pb2+和其他离子也表现出令人满意的结果。本文还讨论了潜在的淬火机理和可能的未来应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Two-Step Synthesis of a Pullulan-Derived Polymeric Fluorophore with Metal Ion Sensing Abilities

Two-Step Synthesis of a Pullulan-Derived Polymeric Fluorophore with Metal Ion Sensing Abilities

Metal ions, which are naturally occurring in food, soil, and water, are present in every part of the environment. Therefore, it is imperative to identify those using accessible and economical methods. In this study, a novel two-step chemical modification process for pullulan, a natural polymer, is presented. This process yields a macromolecular derivative with considerably increased fluorescence, enabling efficient detection of specific metal ions. Furthermore, the recently synthesized polymer displays distinctly divergent characteristics in comparison with the native pullulan, a consequence of the undergone chemical reactions. These include the existence of fluorescence and solubility in organic solvents, which are lacking from the initial polymer. Subsequent to exhaustive thermal and spectral analysis, the synthesized polymer's capacity to discern disparate metal ions is investigated. The interaction between metal ions and the pullulan derivative is monitored to ascertain the extent of fluorescence quenching during this process. The synthesized polymer exhibits the greatest sensitivity to Fe3+ and Cu2+ among the various cations that are examined, while Pb2+ and the other ions demonstrate satisfactory results. The paper also discusses the underlying quenching mechanism and possible future applications.

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来源期刊
Macromolecular Rapid Communications
Macromolecular Rapid Communications 工程技术-高分子科学
CiteScore
7.70
自引率
6.50%
发文量
477
审稿时长
1.4 months
期刊介绍: Macromolecular Rapid Communications publishes original research in polymer science, ranging from chemistry and physics of polymers to polymers in materials science and life sciences.
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