Abstract In this study we describe a novel and simple method to couple covalently poly (maleic anhydride-alt-1-alkenes) to γ-alumina nanofiltration membranes for the first time. The 1-alkenes varied from 1-hexene, 1-decene, 1-hexadecane to 1-octadecene. The grafting reaction was between the reactive anhydride moieties of the polymer and surface hydroxyl groups, resulting in highly stable bonds. The modified membranes were investigated for their permeation and rejection performance of Sudan Black (SB, Mw 457 Da) in either toluene or ethyl acetate (EA) solution, and very high rejections (> 90%) and high permeation flux were observed compared to unmodified membranes. Initially, the SB in toluene solution was found to bind strongly to the surface hydroxyl groups of the unmodified membranes, an effect not observed in EA solution.

中文翻译：

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聚（马来酸酐-alt-1-烯烃）直接接枝到γ-氧化铝上，用于高性能有机溶剂纳滤膜

摘要 在这项研究中，我们首次描述了一种将聚（马来酸酐-alt-1-烯烃）共价偶联到 γ-氧化铝纳滤膜的新颖而简单的方法。1-烯烃从1-己烯、1-癸烯、1-十六烷到1-十八烯不等。接枝反应发生在聚合物的反应性酸酐部分和表面羟基之间，产生高度稳定的键。研究了改性膜对苏丹黑 (SB, Mw 457 Da) 在甲苯或乙酸乙酯 (EA) 溶液中的渗透和截留性能，与未改性膜相比，观察到非常高的截留率 (> 90%) 和高渗透通量膜。最初，发现甲苯溶液中的 SB 与未改性膜的表面羟基强烈结合，这在 EA 溶液中未观察到。