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首页> 外文期刊>Journal of Applied Polymer Science >Structural manipulation of PES constituents to prepare advanced alternative polymer for ultrafiltration membrane
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Structural manipulation of PES constituents to prepare advanced alternative polymer for ultrafiltration membrane

机译：PES成分的结构操纵为超滤膜制备先进的替代聚合物

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摘要

Polyethersulfone (PES) is the most well-known polymer for the preparation of ultrafiltration (UF) membrane, but its membrane suffers from fouling. In this study, two engineered polymers were synthesized to provide optimal antifouling properties for UF membranes that simultaneously benefit from good properties of polyamide and PES. The choice of polyamide is due to its prominent characteristics and the convenience of its synthesis with various functional groups in a cost-effective way. Two hydroxyl containing polyamide bearing sulfone groups (PAS) and ether group (PAE) were synthesized by polycondensation method. The UF membranes were fabricated using the phase inversion method via immersion precipitation of PAS, PAE, and PES in dimethylacetamide, as a solvent and water, as a nonsolvent. The obtained membranes were compared and characterized by means of atomic force microscopy, scanning electron microscopy, contact angle, and Fourier transform infrared spectroscopy in the attenuated total reflection mode. The performance of membranes illustrated that the PAS and PAE membranes in comparison with the PES membrane had better porosity, water permeability, lesser protein fouling, more vertically finger-like pores, and more hydrophilic surface. The water permeability of PES, PAE, and PAS was 7.3, 64.0, and 78.0 L m(-2) h(-1) while their flux recovery ratio was 59.4, 83.3, and 86.7%, respectively. The promising permeability and antifouling properties of the PAS are potentially applicable in the efficient industrial separation and wastewater treatment. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48690.
机译：聚醚砜（PES）是最着名的聚合物，用于制备超滤（UF）膜，但其膜遭受污垢。在该研究中，合成了两个工程化聚合物，为UF膜提供最佳的防污性能，其同时受益于聚酰胺和PES的良好性质。聚酰胺的选择是由于其具有成本有效的方式与各种官能团合成的突出特征和其合成的便利性。通过缩聚法合成了含两种含有砜的聚酰胺（PAS）和醚基（PAE）。通过浸渍法制备PAS，PAE和PES在二甲基乙酰胺中的PES，作为溶剂和水作为非溶剂来制造UF膜。比较所获得的膜，并通过原子力显微镜，扫描电子显微镜，接触角和傅里叶变换红外光谱法在减振的全反射模式中进行了表征。膜的性能表明，与PES膜相比，PAS和PAE膜具有更好的孔隙率，水渗透性，较小的蛋白质污垢，更垂直指状物状孔，更亲水的表面。 PE，PAE和PA的水渗透率为7.3,64.0和78.0L m（-2）H（-1），而流量恢复比分别为59.4,83.3和86.7％。 PAS的有希望的渗透性和防污性能可能适用于有效的工业分离和废水处理。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,137,48690。

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