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通过共混法制备了含辣素衍生结构丙烯酰胺聚合物的抑菌性聚醚砜超滤膜。首先,用N-(5-甲基-3-异丁基-2羟基-苄基)-丙烯酰胺(MBHBA)和丙烯酰胺(AM)、甲基丙烯酸甲酯(MMA)、丙烯酸乙酯(EA)制备了四元共聚物P(A-E-M-M),通过红外光谱证实了聚合物的合成;然后考察了铸膜液中四元共聚物的含量对所制备超滤膜性能的影响。结果表明,当P(A-E-M-M)含量为1%时,改性膜具有较高的综合性能:纯水通量和BSA截留率分别为187.6 L/(m2.h)和94.7%,与基膜相比有所提高;同时亲水性增加,静态接触角仅为62°,比基膜降低了12°;抑菌率达到了78.4%,远高于基膜的抑菌率(20%)。
The bacteriostasis polyethersulfone ultrafiltration membrane containing the acrylamide polymer with the spicy-derived structure was prepared by blending method. First of all, the reaction was carried out with N- (5-methyl-3-isobutyl-2-hydroxybenzyl) -acrylamide (MBHBA) and acrylamide (AM), methylmethacrylate (MMA) ) Was used to prepare the quaternary copolymer P (AEMM). The synthesis of the polymer was confirmed by infrared spectroscopy. Then the influence of the content of tetrapolymer in the casting solution on the performance of the prepared ultrafiltration membrane was investigated. The results showed that when the content of P (AEMM) was 1%, the modified membrane had a higher comprehensive performance: the pure water flux and BSA retention rate were 187.6 L / (m2.h) and 94.7%, respectively, Than the basement membrane decreased by 12 °; inhibition rate reached 78.4%, much higher than the basement membrane antibacterial rate (20%).