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Highly fouling-resistant brominated poly(phenylene oxide) membranes using surface grafted diethylenetriamine

机译:使用表面接枝二亚乙基三胺的高度耐污的溴化聚苯醚膜

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Hydrophilic bromomethylated poly(phenylene oxide) (BPPO) ultrafiltration membranes were prepared via a single-step reaction with diethylenetriamine (DETA). The resulting DETA modified BPPO membranes are characterised using FTIR-ATR, SEM, fouling resistance, filtration test and contact angle measurements. Although permeation flux was adversely affected, the chemically bound DETA leads to a significant increase in surface hydrophilicity and anti-fouling properties of BPPO/DETA membranes. The composite BPPO/DETA membranes show a considerable reduction in membrane fouling and enhanced BSA rejection, with foulants easily removed by normal cleaning methods. Herein, a facile surface modification with DETA is shown to be an effective means of enhancing the flux recovery ratio and anti-fouling properties of BPPO membranes.
机译:通过与二亚乙基三胺(DETA)的一步反应制备亲水性溴甲基化聚苯醚(BPPO)超滤膜。使用FTIR-ATR,SEM,耐污染性,过滤测试和接触角测量来表征所得的经DETA改性的BPPO膜。尽管渗透通量受到不利影响,但化学结合的DETA导致BPPO / DETA膜的表面亲水性和防污性能显着提高。 BPPO / DETA复合膜表现出明显的膜污染减少和BSA排斥增强,污垢易于通过常规清洁方法清除的现象。在本文中,表明用DETA进行的简单表面改性是提高BPPO膜通量回收率和防污性能的有效手段。

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