Surface hydrophilicity and morphology control of anti-biofouling polysulfone membranes via vapor-induced phase separation processing.
Surface hydrophilicity and morphology control of anti-biofouling polysulfone membranes via vapor-induced phase separation processing.
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DOI：
10.1166/jnn.2013.7359
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发表时间：
2013-04
影响因子：
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通讯作者：
A. Venault;Yung Chang
中科院分区：
文献类型：
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作者：
A. Venault;Yung Chang
在这项研究中，我们报告的形成低生物污染聚砜（PSF）膜的蒸汽诱导相分离。通过将两亲性添加剂Pluronic F108、Pluronic F127或3-（N，N-二甲基肉豆蔻基铵基）丙烷磺酸盐（DMMSAPS）与PSf共混，然后诱导溶液的相分离来制备膜。添加剂影响膜的形态和表面化学组成。F127和DMMSAPS使膜的孔隙率增加，而F108制得的膜的最终结构接近原始PSf膜。添加剂的分子量以及胶束的形成被认为是负责这些不同的多孔结构。无论哪种添加剂，膜的亲水性都得到了增强。用PEG化PSf膜进行的蛋白质吸附测试显示，F108和F127都导致生物污损的减少，但使用F127获得更好的性能，其中实现了与膜基质的更强的相互作用。
We report in this study the formation of low-biofouling polysulfone (PSf) membranes by vapor-induced phase separation. Membranes were prepared by blending an amphiphilic additive, Pluronic F108, Pluronic F127 or 3-(N,N-Dimethylmyristylammonio)propane-sulfonate (DMMSAPS) with PSf, before inducing phase separation of the solution. The additive affected both membrane morphology and surface chemical composition. F127 and DMMSAPS tended to increase the porosity of membranes, while the final structure of membranes prepared with F108 were close to that of virgin PSf membrane. The additive molecular weight as well as micelle formation is believed to be responsible for these different porous structures. Whatever the additive, hydrophilicity of membranes was enhanced. Protein adsorption tests performed with PEGylated PSf membranes revealed that both F108 and F127 led to a decreasing of biofouling, but better performances were obtained using F127 for which stronger interactions with membrane matrices were achieved.