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以氯甲基化双酚A型聚砜(PSF-CH2Cl)为大分子引发剂,通过原子转移自由基聚合(ATRP)法合成了以聚砜(PSF)为疏水主链、聚(聚乙二醇单甲醚甲基丙烯酸酯)[P(PEGMA)]为亲水侧链的梳状两亲性共聚物PSF-g-P(PEGMA).FT-IR和1H-NMR的表征结果证实了两亲性共聚物的生成.将PSF-g-P(PEGMA)与PSF进行共混,通过浸没沉淀法制备了共混超滤膜.研究发现,引入5 wt%的PSF-g-P(PEGMA),共混膜的孔隙率和平均孔径分别从65.9%和0.08μm提高到81.9%和0.18μm;将共混膜于90℃热水中浸泡24 h后,膜表面O/S从14.63提高到17.16;共混膜的亲水性和抗牛血清蛋白(BSA)吸附性能显著提升.
Using PSF-CH2Cl as the macromolecular initiator and atom-transfer radical polymerization (ATRP) as the hydrophobic backbone, (PEGMA)] is hydrophilic amphiphilic PSF-gP (PEGMA) .The characterization results of FT-IR and 1H-NMR confirm that amphipathic Copolymer was prepared by mixing PSF-gP (PEGMA) with PSF and the blend ultrafiltration membrane was prepared by immersion precipitation method.It was found that 5wt% PSF-gP (PEGMA) And the average pore size increased from 65.9% and 0.08μm to 81.9% and 0.18μm, respectively. After soaking the blended membrane in hot water at 90 ℃ for 24 h, the O / S of membrane surface increased from 14.63 to 17.16. Water-based and anti-bovine serum albumin (BSA) adsorption performance improved significantly.