| Autor: |
Shen, Xiang, Xie, Tiande, Wang, Jiangang, Wang, Fan |
| Předmět: |
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| Zdroj: |
Colloid & Polymer Science; Jul2017, Vol. 295 Issue 7, p1211-1221, 11p |
| Abstrakt: |
An amphiphilic copolymer of poly(methyl methacrylate)- co-poly( N-acryloylmorpholine) (PMMA- co-PACMO) was synthesized via radical copolymerization. The copolymer was directly blended with poly(vinylidene fluoride) (PVDF) to prepare flat membranes using the phase inversion technology. During membrane formation, the hydrophilic PACMO chains were preferably segregated onto membrane surface, which endowed the PVDF/PMMA- co-PACMO membranes with the enhanced hydrophilicity. The prepared PVDF/PMMA- co-PACMO membranes showed lower protein adsorption than pristine PVDF membrane, due to the elimination of interaction force between membrane and protein. With the increase of copolymer concentration in the casting solution, the macrovoids were gradually formed at the cross section of the PVDF/PMMA- co-PACMO membranes. Filtration experiments indicated that the total and irreversible membrane fouling ratios were significantly suppressed via the incorporation of PMMA- co-PACMO. The flux recovery ratio of the PVDF/PMMA- co-PACMO membrane was as high as 98.4%. These results suggested that the hydrophilic modification by blending amphiphilic copolymer PMMA- co-PACMO was a feasible approach to improve anti-fouling property of PVDF membrane. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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