Novel monomers with N-methyl-D-glucamine segments and their application in structured porous materials for arsenic capture,Journal of Applied Polymer Science

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Novel monomers with N-methyl-D-glucamine segments and their application in structured porous materials for arsenic capture
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-09-06 , DOI: 10.1002/app.51610
Daniele Caretti ₁ , Lorenzo Binda ₁ , Natalia Casis ₂ , Diana A. Estenoz ₂

Affiliation

The N-methyl-D-glucamine moieties exhibit high ability and selectivity toward arsenate ions in water by a complexation mechanism that involves their hydroxyl groups. In this work, the syntheses of two monomers containing N-methyl-D-glucamine, namely 4-vinylbenzyl-N-methyl-D-glucamine (VbNMDG), and N-methyl-D-glucamine methacrylamide (MNMDG) were studied. Different synthetic routes were considered in order to obtain liquid monomers able to polymerize and selectively capture arsenic. Furthermore, the incorporation of protective groups like trimethylsilyl moieties in the molecular structure was assessed to prevent transfer reactions during further polymerization. After polymerization, hydroxyl groups were deprotected using hydrofluoric acid. Following this methodology, structured microporous polymeric films based on colloidal crystal templates were prepared. NMR and FTIR techniques were used to follow the reactions and to determine the chemical structure of the obtained products. The morphology of materials was characterized by SEM. The performances of the developed polymeric films to selectively capture arsenic were determined. Films showed an improved and reproducible sensitivity to arsenic detection exhibiting high values of arsenic capturing capability (around 90%).

中文翻译：

具有N-甲基-D-葡糖胺链段的新型单体及其在用于砷捕获的结构化多孔材料中的应用

所述Ñ甲基d -glucamine部分表现出通过涉及其羟基的络合机制高能力和在水向砷酸离子选择性。在这项工作中，合成了两种含有N-甲基-D-葡糖胺的单体，即 4-乙烯基苄基-N-甲基-D-葡糖胺 (VbNMDG) 和N-甲基-D-葡糖胺甲基丙烯酰胺（MNMDG）进行了研究。为了获得能够聚合和选择性捕获砷的液体单体，考虑了不同的合成路线。此外，评估了在分子结构中加入保护基团（如三甲基甲硅烷基部分）以防止进一步聚合过程中发生转移反应。聚合后，羟基使用氢氟酸脱保护。按照这种方法，制备了基于胶体晶体模板的结构化微孔聚合物薄膜。NMR和FTIR技术用于跟踪反应并确定所得产物的化学结构。材料的形貌通过扫描电镜表征。确定了开发的聚合物膜选择性捕获砷的性能。

更新日期：2021-11-01

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