Enhanced oil-fouling resistance of poly(ether sulfone) membranes by incorporation of novel amphiphilic zwitterionic copolymers
Enhanced oil-fouling resistance of poly(ether sulfone) membranes by incorporation of novel amphiphilic zwitterionic copolymers
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通过掺入新型两亲性两性离子共聚物增强聚醚砜膜的耐油污性
DOI：
10.1039/c5ra23544h
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发表时间：
2016-01
期刊：
影响因子：
3.9
通讯作者：
Chen Fengqiu
中科院分区：
文献类型：
--
作者：
Zhang Guangfa;Gao Fan;Zhang Qinghua;Zhan Xiaoli;Chen Fengqiu
In this study, a novel amphiphilic copolymer, poly(carboxyl betain methyl acrylamide-co-3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl acrylate) P(CBMA-co-TFOA), with zwitterionic and fluorinated moieties was synthesized by free radical polymerization and a subsequent quaternization reaction. The synthesized copolymers acted as additives and were blended with poly(ether sulfone) (PES) to fabricate low oil-fouling PES membranes through nonsolvent induced phase separation (NIPS). The prominent surface enrichment of hydrophilic zwitterionic (CBMA) and low surface energy (TFOA) segments on the membrane surface was verified by X-ray photoelectron spectroscopy (XPS), water contact angle measurements and surface energy analysis. The excellent oil-fouling resistant capacity of these modified membranes was demonstrated by oil/water emulsion separation tests. In particular, membrane PES/P3, with the optimized hydrophilic and hydrophobic ratio, achieved the highest anti-oil-fouling properties with a total flux decay as low as 17.4% (nearly no irreversible flux-decline) and high flux recovery (99.3%) after simple water flushing. These desirable antifouling properties are believed to originate from the binary-cooperative effect of zwitterionic and low surface energy microdomains. Moreover, three-cycle oil/water separation tests and underwater immersion experiments further revealed that the as-prepared membranes have remarkable antifouling stability. The results of this study provide a new insight into the surface chemical heterogeneity–antifouling property relationships of membranes for efficient oil/water separation.
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影响因子：
19
作者：
Chen, Wenjuan;Su, Yanlei;Jiang, Zhongyi
通讯作者：
Jiang, Zhongyi
影响因子：
29.4
作者：
Kwon, Gibum;Kota, Arun. K.;Tuteja, Anish
通讯作者：
Tuteja, Anish
通过反应性聚醚砜基共聚物添加剂的表面季铵化增强聚醚砜膜的防污和抗菌性能
影响因子：
4.2
作者：
Jiang, Jin-Hong;Yi, Zhuan;Zhu, Bao-Ku;Xu, You-Yi
通讯作者：
Xu, You-Yi
影响因子：
15
作者：
Gitsov, I;Frechet, JMJ
通讯作者：
Frechet, JMJ
影响因子：
9.5
作者：
Bengani, Prity;Kou, Yangming;Asatekin, Ayse
通讯作者：
Asatekin, Ayse