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Efficient One-Step Synthesis of Catechol Containing Polymers via Friedel–Crafts Alkylation and Their Use for Water Decontamination
Macromolecules ( IF 5.1 ) Pub Date : 2024-11-15 , DOI: 10.1021/acs.macromol.4c02233
Timo Sehn, Nicolai Kolb, Alexander Azzawi, Michael A. R. Meier

We herein present an efficient one-step synthesis route toward catechol containing polymers from liquid polybutadiene via a simple post polymerization modification (PPM) approach applying acid catalyzed Friedel–Crafts alkylation (FCA). Accordingly, 100% modification of polybutadiene was achieved within 30 min in bulk at 120 °C. The final structure of the polymer was analyzed by 1H, 13C, 2D nuclear magnetic resonance (NMR), infrared (IR), diffusion ordered spectroscopy (DOSY), and size exclusion chromatography (SEC). Material properties were investigated via thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Subsequent metal ion removal tests revealed excellent extraction efficiencies (86% ≤ Mn+removal < 100%) when using the catechol containing polymer as heavy metal sorbent and thus emphasize a potential application for water purification processes.

中文翻译:


通过 Friedel-Crafts 烷基化法一步法高效合成含邻苯二酚的聚合物,并将其用于水净化



我们在此提出了一种高效的一步法合成含邻苯二酚的聚合物,通过简单的聚合后改性 (PPM) 方法,应用酸催化的 Friedel-Crafts 烷基化 (FCA)。因此,在 120 °C 下,聚丁二烯在 30 分钟内以散装方式实现了 100% 的改性。 通过 1H、13C、二维核磁共振 (NMR)、红外 (IR)、扩散有序光谱 (DOSY) 和尺寸排阻色谱 (SEC) 分析聚合物的最终结构。通过热重分析 (TGA) 和差示扫描量热法 (DSC) 研究材料特性。随后的金属离子去除测试显示,当使用含有邻苯二酚的聚合物作为重金属吸附剂时,提取效率优异 (86% ≤ Mn+去除 < 100%),因此强调了水净化工艺的潜在应用。
更新日期:2024-11-16
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