以聚偏氟乙烯(PvDF)为膜材料,通过浸没沉淀法制备得到开放性网络状对称结构的PVDF膜.考察不同添加剂对膜结构的影响.结果表明,与溶剂磷酸三乙酯(TEP)相容性良好的添加剂(乙醇,聚乙二醇,乙酸乙酯)所成膜表面结构均匀,孔隙率较大,蛋白吸附量较高;与溶剂相容性较差的添加剂(水,甘油)使得铸膜液组成接近于分相区,成膜过程分相较快,所成膜表面粗糙,孔隙率较小,蛋白吸附量和水通量也较低.以乙醇为添加剂的PVDF膜蛋白吸附量达到171μg/cm<'2>.
参考文献
| [1] | Carme Gueell;Robert H. Davis .Membrane fouling during microfiltration of protein mixtures[J].Journal of Membrane Science,1996(2):269-284. |
| [2] | Bottino A.;Capannelli G. .Poly(vinylidene fluoride) with improved functionalization for membrane production[J].Journal of Membrane Science,2000(1):23-29. |
| [3] | Hung CH;Lin YL;Young TH .The effect of chitosan and PVDF substrates on the behavior of embryonic rat cerebral cortical stem cells[J].Biomaterials,2006(25):4461-4469. |
| [4] | Kurien BT;Scofield RH .Western blotting.[J].Methods: A Companion to Methods in Enzymology,2006(4):283-293. |
| [5] | Zhao YH;Qian YL;Pang DX;Zhu BK;Xu YY .Porous membranes modified by hyperbranched polymers II. Effect of the arm length of amphiphilic hyperbranched-star polymers on the hydrophilicity and protein resistance of poly(vinylidene fluoride) membranes[J].Journal of Membrane Science,2007(1/2):138-147. |
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