【作者】 赵海洋； 赵义平； 陈莉； 张青松； 王进美； 张蕊；

【Author】 Zhao Haiyang,Zhao Yiping,ChenLi,Zhang Qingsong,WangJinmei,Zhang Rui (School of Materials Science and Engineering,State Key Laboratory of Hollow Fiber Membrane Materials and Processes,Tianjin Polytechnic University,Tianjin 300160, P.R.China)

【机构】 天津工业大学材料科学与工程学院,中空纤维膜材料与膜过程省部共建国家重点实验室培育基地；

【摘要】 <正>聚偏氟乙烯(PVDF)膜具有较好的化学稳定性、热稳定性和机械性能,被广泛应用于物质分离领域。但由于PVDF膜强的疏水性,易被蛋白质等污染,限制了其在水分离和蛋白质溶液分离方面的应用[1]。近年来,PVDF膜亲水改性和抗污染等方面的研究日益引起人们的重更多还原

【Abstract】 N-isopropylacrylamide(NIPAAm) was grafted on Poly(vinylidene fluoride)(PVDF) membrane by the method of atom transfer radical polymerization(ATRP).The grafting copolymerization PVDF-g-PNIPAAm was characterized by Scaning electron microscopy(SEM), Fourier transform infrared(FTIR) and X-ray photoelectron spectroscopy(XPS) measurements,and the contact angle and water penetration were tested.The results showed that NIPAAm was grafted on the PVDF membrane successfully and the membrane pore was covered with PNIPAAm.Water contact angles of PVDF membranes reduced after the surface grafting of NIPAAm and the hydrophilicity of the grafted membrane was improved.Water fluxes experiment revealed that the PVDF-g-PNIPAAm membranes exhibited temperature-responsive permeability.更多还原