This study introduces reusable polyacrylic membranes, fabricated from commercially available monomers (1-vinyl-2-pyrrolidone and methylmethacrylate), as a promising approach for pesticide extraction. These membranes effectively remove the commonly used herbicides mecoprop (RE ≈ 99%) and bentazon (RE ≈ 95%) at low concentrations, which pose water contamination risks due to their water-soluble properties and leaf-level sorption. The membranes exhibit excellent manageability and resistance, allowing for safe handling without personal protective equipment. Additionally, the material is environmentally friendly and can be washed and reused for at least 4 cycles without a significant decrease in performance. Characterization techniques, including NMR, TGA, DSC, mechanical testing, N2 adsorption, and FTIR analysis, were used to investigate properties and assess the influence of the polymeric composition. The study focused on examining the lateral charged aminoethyl groups, which play a crucial role in sorbent-sorbate interactions. Sorption kinetics, isotherms, and permeation studies provided insights into the removal mechanism, efficiency, and permeability coefficients, revealing hydrophobic–hydrophobic interactions between the pesticides and the polymer. Molecular dynamics simulations revealed a scorpion-like conformation of the macromolecular chains surrounding the pesticides. These findings support the hydrophobic nature of the extraction mechanism and highlight the significant role of charged aminoethyl groups in facilitating this process.

本研究介绍了一种可重复使用的聚丙烯酸酯膜，该膜由市售单体（1-乙烯基-2-吡咯烷酮和甲基丙烯酸甲酯）制成，是一种很有前途的农药提取方法。这些膜可有效去除低浓度的常用除草剂甲氯丙（RE ≈ 99%）和苯达松（RE ≈ 95%），由于它们的水溶性和叶片吸附性，它们会造成水污染风险。这些膜具有出色的可操作性和耐受性，无需个人防护设备即可安全处理。此外，该材料对环境友好，可以清洗并重复使用至少 4 次，性能不会显著下降。使用 NMR、TGA、DSC、机械测试、N2 吸附和 FTIR 分析等表征技术来研究性能并评估聚合物组成的影响。该研究重点研究了侧向带电的氨基乙基基团，它们在吸附剂-山梨酸相互作用中起着至关重要的作用。吸附动力学、等温线和渗透研究提供了有关去除机制、效率和渗透系数的见解，揭示了农药和聚合物之间的疏水-疏水相互作用。分子动力学模拟揭示了农药周围大分子链的蝎子状构象。这些发现支持了提取机制的疏水性质，并强调了带电氨基乙基在促进这一过程中的重要作用。