Hemocompatibility and ultrafiltration performance of PAN membranes surface‐modified by hyperbranched polyesters |
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| Authors: | Xiuzhen Wei Yaowei Fei Yingying Shi Jinyuan Chen Bosheng Lv Yongsheng Chen Hai Xiang |
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| Institution: | 1. College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, China;2. School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA;3. College of Bioengineering, Zhejiang Chinese Medical University, Hangzhou, China |
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| Abstract: | Maleic anhydride was grafted onto a polyacrylonitrile (PAN) membrane surface via ultraviolet irradiation. Then, hyperbranched polyester, with varying numbers of hydroxyl end‐groups (H20, H30, and H40), was grafted onto the PAN membrane surface by the reaction of hydroxyl groups with anhydride groups of maleic anhydride. The modified membranes were characterized by scanning electron microscopy, static water contact angle, and attenuated total reflectance‐Fourier transform infrared spectroscopy measurements. The modified membranes showed a higher water flux and better antifouling properties than pristine PAN membranes, and their hydrophilicity was significantly improved. Membrane biocompatibility was characterized by platelet adhesion, and the results indicate that the modified membranes exhibited good biocompatibility. Copyright © 2016 John Wiley & Sons, Ltd. |
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| Keywords: | hyperbranched polyester maleic anhydride surface modification PAN ultrafiltration membranes |
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