Correlation of the polymer hydrophilicity and membrane fabrication process on the properties of asymmetric membranes in a vapor-induced phase-inversion process
Correlation of the polymer hydrophilicity and membrane fabrication process on the properties of asymmetric membranes in a vapor-induced phase-inversion process
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聚合物亲水性和膜制造工艺与蒸汽诱导相转化过程中不对称膜性能的相关性
DOI：
10.1002/app.44701
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发表时间：
2017-04
影响因子：
3
通讯作者：
Li Shenghai
中科院分区：
文献类型：
--
作者：
Zhu Jianhua;Zhang Qifeng;Zheng Jifu;Hou Shuhua;Zhang Suobo;Li Shenghai
在这项研究中，我们试图更好地了解聚合物的亲水性如何影响膜的形态和性能。研究了三种具有不同亲水性溶液体系的聚合物：带有羟基（PEK-OH-100）的聚芳醚酮与N，N-二甲基甲酰胺（DMF）；含有50%羟基的聚（芳醚酮）和含有DMF的cardo聚（芳醚酮）。这些系统被用来研究形态的演变和性能的变化，以及聚合物亲水性的变化。此外，通过云点测量和Hansen溶解度参数理论研究了溶液体系对相变过程的基本热力学影响，以确定聚合物亲水性对聚合物溶液在潮湿环境下稳定性的作用。通过测试纯水通量、孔隙率和牛血清白蛋白（BSA）的吸附性来测试膜的性能，这些性能与聚合物亲水性、蒸发时间、相对湿度和聚合物分子量的变化有关。在相对湿度为90%、蒸发时间为3 s的条件下，最佳膜通量为329.3 L m−2 h−1，对BSA的去除率为99.3%。PEK-OH-100亲水性膜在蛋白质分离、反渗透膜的多孔支撑等方面具有广阔的应用前景。©2017 Wiley期刊公司j:。变异较大。自然科学学报，2017,34(4):447 - 447。
In this study, we sought a better understanding of how the hydrophilicity of a polymer affects the morphology and performance of membranes. Three types of polymer with different hydrophilicity solution systems were considered: poly(aryl ether ketone) bearing a hydroxyl group (PEK–OH-100) with N,N-dimethylformamide (DMF); poly(aryl ether ketone) bearing a 50% fraction hydroxyl group with DMF, and cardo poly(aryl ether ketone) with DMF. These systems were used to investigate the evolution of the morphology and variation in performance versus a change in the hydrophilicity of the polymer. In addition, the fundamental thermodynamic influence of the solution systems on the phase-inversion process was investigated by cloud-point measurement and Hansen solubility parameter theory to determine the role of polymer hydrophilicity on the stability of the polymer solution in humid surroundings. The performance of the membranes was tested via testing of the pure water flux, porosity, and rejection of bovine serum albumin (BSA) with respect to variations in the polymer hydrophilicity, evaporation time, relative humidity, and molecular weight of the polymer. The resulting optimal membrane exhibited a flux of 329.3 L m−2 h−1 and a 99.3% rejection of BSA at a relative humidity of 90% and an evaporation time of 3 s. The hydrophilic PEK–OH-100 membranes have promising applications in protein separation and the porous support of reverse-osmosis membranes and so on. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44701.
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影响因子：
9.5
作者：
Ghosh, Asim K.;Hoek, Eric M. V.
通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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通讯作者：
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影响因子：
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作者：
陆晓峰;卞晓锴;周晨;侯铮迟;刘忠英;李良;施柳青
通讯作者：
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