聚醚砜接枝聚乙烯基吡咯烷酮超滤膜的制备及其抗污染性能

doi:10.11889/j.1000-3436.2018.rrj.36.020301

	聚醚砜接枝聚乙烯基吡咯烷酮超滤膜的制备及其抗污染性能
其他题名	Ultrafiltration membranes prepared from polyethersulfone-grafted-poly (N-vinyl-pyrrolidone) synthesized via simultaneous irradiation in homogenous phase and their anti-fouling performance
	樊凯1,2,3 ; 周国清3 ; 杨海军 1; 胡钧 1; 侯铮迟 1
	2018-04-20
发表期刊	辐射研究与辐射工艺学报
ISSN	1000-3436
卷号	36 期号:02 页码:32-39
摘要	采用均相共辐照方法,将聚乙烯基吡咯烷酮(PVP)接枝到聚醚砜(PES)的分子链上,制备改性的制膜材料(PES-g-PVP),并采用非溶剂致相转换法制备PES滤膜以及PES-g-PVP改性滤膜。研究了单体浓度和吸收剂量等因素对改性膜材料接枝率的影响。结果表明,当单体浓度低于12%、吸收剂量低于35 kGy时,提高单体浓度和吸收剂量,均能有效提升产物的接枝率。傅里叶红外光谱图证实了接枝反应的有效进行。扫描电子显微镜照片发现,不同于PES超滤膜的"指状孔",PES-g-PVP膜呈现一种"海绵状孔"型的断面结构。相比PES超滤膜,接枝率为8.42%的PES-g-PVP超滤膜的接触角下降12.1%,说明改性后膜材料的亲水性得到有效提高;同时,其对牛血清白蛋白的截留率保持在90%以上,且膜的纯水通量提高了4.9倍,说明接枝后膜材料的抗污染性能得到有效提升。
其他摘要	Polymerization was performed in a homogenous phase using N-methylpyrrolidone as the solvent. Pristine polyethersulfone (PES) and PES-grafted poly (N-vinylpyrrolidone) (PES-g-PVP) with different degrees of grafting (DGs) were then cast into membranes via phase inversion methodology. Crucial parameters affecting the graft copolymerization, such as the monomer concentration and absorbed dose, were studied. The results showed that increasing the monomer concentration and absorbed dose both served to improve the DG of the copolymer for monomer concentrations and absorbed dose less than 12% and 35 kGy, respectively. The presence of grafted chains was confirmed by Fourier-transform infrared spectroscopy. Scanning electron microscopy images showed that unlike the pristine PES membrane, the modified PES-g-PVP membrane possessed a "sponge-like" cross section. The contact angle of the PES-g-PVP membranes with a DG of 8.42% was lower than that of the pristine PES membrane by 12.1%, which indicated an improvement of the hydrophilic property of the membrane after grafting PVP onto PES molecular chains. The water flux of the PES-g-PVP membrane with a DG of 8.42% increased by a factor of approximately 4.9 compared with that of the pristine PES membrane, while its bovine serum albumin rejection rate was greater than 90%, indicating the improved antifouling properties of grafted PES-g-PVP membranes.
关键词	聚乙烯基吡咯烷酮聚醚砜超滤膜均相共辐照
DOI	10.11889/j.1000-3436.2018.rrj.36.020301
URL	查看原文
收录类别	CSCD ; ISTIC
语种	中文
原始文献类型	学术期刊
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/5086
专题	建筑与材料学院
作者单位	1.中国科学院上海应用物理研究所; 2.中国科学院大学; 3.重庆电子工程职业学院
第一作者单位	重庆电子科技职业大学
推荐引用方式 GB/T 7714	樊凯,周国清,杨海军,等. 聚醚砜接枝聚乙烯基吡咯烷酮超滤膜的制备及其抗污染性能[J]. 辐射研究与辐射工艺学报,2018,36(02):32-39.
APA	樊凯,周国清,杨海军,胡钧,&侯铮迟.(2018).聚醚砜接枝聚乙烯基吡咯烷酮超滤膜的制备及其抗污染性能.辐射研究与辐射工艺学报,36(02),32-39.
MLA	樊凯,et al."聚醚砜接枝聚乙烯基吡咯烷酮超滤膜的制备及其抗污染性能".辐射研究与辐射工艺学报 36.02(2018):32-39.

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