| Preparation and properties of reverse osmosis membrane based onsulfonated poly(ether sulfone) |
| Authors： Ying Wan Cui Mao Qi Zhou Xuefeng Chen Qunhua Liu Wen Liu* |
| Units： China National Pulp and Paper Research Institute,Beijing,100102 |
| KeyWords： sulfonated poly(ether sulfone); reverse osmosis membrane；chlorine-tolerance |
| ClassificationCode：O631.5 |
| year,volume(issue):pagination： 2014,34(6):46-50 |
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Abstract： |
| Cardo poly(ether sulfone) polymer (PES) was synthesized by direct copolymerization method. After sulfonation, sulfonated poly(ether sulfone) polymer (SPES) was obtained, and the expected structure of the polymer was confirmed by 1H NMR. Reverse osmosis membranes were prepared by brushing method with SPES and PVA as the functional material and polysulfone ultrafiltration membrane as a support-layer. The SEM results indicated that the obtained reverse osmosis membranes had smooth surface, and no defect was observed. The introduction of PVA into the reverse osmosis membranes resulted in the improvement of the salt rejection and chlorine-tolerance. All the membranes showed appropriate water flux and salt rejection. Notably, SPES-PVA-0.1, with PVA content of 0.1%, exhibited a NaCl rejection of 97.8% and water flux of 12.3 L/m2h at 2.0 Mpa. |
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AuthorIntro： |
| 万莹（1984—），女，;吉林省德惠市人，博士，工程师，造纸技术。 |
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Reference： |
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