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首页> 外文期刊>Journal of Applied Polymer Science >Polysulfone-based amphiphilic copolymers: Effect of hydrophilic content on morphology and performance of ultrafiltration membranes
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Polysulfone-based amphiphilic copolymers: Effect of hydrophilic content on morphology and performance of ultrafiltration membranes

机译：聚砜基两亲性共聚物：亲水含量对超滤膜形态和性能的影响

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A series of polysulfone (PSf)-based amphiphilic graft copolymers were synthesized to investigate the effects of copolymer composition on membrane morphology and performance. PSf-based ultrafiltration membranes were prepared by phase inversion method using the blends of PSf and PSf-g-poly(ethylene glycol) methyl ether methacrylate (PEGMA) copolymers. Membranes were evaluated in terms of pure water permeability, flux recovery ratio (FRR), protein rejection, and contact angle. The morphology of the membranes was investigated by scanning electron microscopy. Contact angle of membranes was decreased from 85.7 degrees to 51.6 degrees, while the FRR was greatly increased from 55 to 95% upon increasing the PEGMA content of copolymers from 20 to 70 wt %. Results indicated that the ratio of hydrophilic/hydrophobic segments in amphiphilic structures is one the key parameters that control the phase inversion process by altering miscibility, viscosity, and wettability of casting solutions. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48306.
机译：合成了一系列聚砜（PSF）基于两亲接枝共聚物，以研究共聚物组合物对膜形态和性能的影响。通过使用PSF和PSF-G-聚（乙二醇）甲基醚甲基丙烯酸甲酯（PEGMA）共聚物的共混物，通过相转化法制备基于PSF的超滤膜。根据纯净渗透性，助熔剂恢复比（FRR），蛋白质排斥和接触角来评估膜。通过扫描电子显微镜研究膜的形态。将膜的接触角从85.7度降低至51.6度，而FRR在增加20至70重量％至70wt％时从55％增加到95％。结果表明，两亲结构中亲水/疏水区段的比例是通过改变铸件溶液的混溶性，粘度和润湿性来控制相逆转过程的关键参数。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,48306。

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