Improved biocompatibility and antifouling property of polypropylene non-woven fabric membrane by sur
Improved biocompatibility and antifouling property of polypropylene non-woven fabric membrane by sur
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DOI：
10.1016/j.memsci.2010.10.046
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发表时间：
2011-03
期刊：
影响因子：
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通讯作者：
Jie Zhao;Q. Shi;Shifang Luan;Lingjie Song;Huawei Yang;Hengchong Shi;Jing Jin;Xing-jia Li
中科院分区：
文献类型：
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作者：
Jie Zhao;Q. Shi;Shifang Luan;Lingjie Song;Huawei Yang;Hengchong Shi;Jing Jin;Xing-jia Li
这项工作描述了通过O2等离子体预处理和紫外线照射技术将两性离子聚合物[3-(甲基丙烯酰氨基)丙基]-二甲基(3-磺丙基)氢氧化铵(MPDSAH)接枝聚合到聚丙烯无纺布(NWF)膜上。主要使用衰减全反射傅里叶变换红外光谱 (FTIR-ATR)、X 射线光电子能谱 (XPS) 和静态水接触角测量来表征改性 NWF 膜的表面。通过水接触角和平衡水吸附来测量润湿性。结果发现，随着聚(MPDSAH)接枝密度从0增加到349.2μg/cm2，膜的水接触角从123°减小到17°，而平衡水吸附在接枝密度为120.5μg/cm2时达到最大值。改性膜上蛋白质吸附和血小板粘附的减少表明，由于掺入了两性离子聚（MPDSAH），因此增强了蛋白质耐受性和优异的抗血小板粘附性。此外，还进行了微滤实验来测试其防污性能。改性膜的水通量恢复率高达 90%，而纯 NWF 膜的水通量恢复率仅为 30% 左右。
This work described the graft polymerization of a zwitterionic polymer, [3-(methacryloylamino)propyl]-dimethyl(3-sulfopropyl) ammonium hydroxide (MPDSAH), onto polypropylene non-woven fabric (NWF) membrane via O2plasma pretreatment and UV-irradiated technique. The surfaces of the modified NWF membranes were principally characterized using attenuated total reflectance Fourier transform infrared spectroscopy (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), and static water contact-angle measurement. The wettability was measured by water contact angle and equilibrium water adsorption. It was found that the water contact angles for the membranes decreased from 123° to 17° with increasing grafting density of poly(MPDSAH) from 0 to 349.2μg/cm2, while the equilibrium water adsorption reached a maximum at the grafting density of 120.5μg/cm2. The decreases of protein adsorption and platelet adhesion on the modified membrane revealed the enhancement protein resistance and excellent resistance to platelet adhesion due to the incorporation of zwitterionic poly(MPDSAH). Besides, microfiltration experiments were carried out to test the antifouling properties. Water flux recovery ratio was achieved as high as 90% for the modified membrane with respect to only about 30% for the neat NWF membrane.