Modification of a polyethersulfone membrane with a block copolymer brush of poly(2-methacryloyloxyethyl phosphorylcholine-: Co-glycidyl methacrylate) and a branched polypeptide chain of Arg-Glu-Asp-Val

doi:10.1039/c9ra04234b

	Modification of a polyethersulfone membrane with a block copolymer brush of poly(2-methacryloyloxyethyl phosphorylcholine-: Co-glycidyl methacrylate) and a branched polypeptide chain of Arg-Glu-Asp-Val
	Niu, Xiaoqin 1; Li, Dan 3; Chen, Yuhong 1; Ran, Fen 2,3
刊名	RSC Advances
	2019
卷号	9 期号:44 页码:25274-25284
关键词	Acrylic monomers Atom transfer radical polymerization Biocompatibility Block copolymers Chemical analysis Chemical stability Contact angle Free radical reactions Grafting (chemical) Hydrophilicity Morphology Ring opening polymerization 2-methacryloyloxyethyl phosphorylcholine Chemical compositions Glycidyl methacrylate Hydrophilic polymers Hydrophilic properties Modified membranes Polyethersulfone membrane Surface modification methods
DOI	10.1039/c9ra04234b
英文摘要	Polyethersulfone (PES) has good thermal stability, superior pH, chlorine tolerance, and excellent chemical resistance; however, the hydrophilicity and biocompatibility of PES need to be improved for its real applications. In this study, we report a surface modification method for the preparation of a functional PES membrane with hydrophilic polymer chains (MPC and GMA) via surface-initiated electrochemically-mediated atom-transfer radical polymerization (SI-eATRP) technology, and the Arg-Glu-Asp-Val polypeptide groups (REDV) were immobilized onto the modified membrane by a ring-opening reaction. XPS and SEM were used to analyze the chemical composition and morphology of the modified membrane surfaces, confirming that the hydrophilic polymer chains MPC and GMA and the polypeptide group REDV were successfully grafted onto the PES membrane surface. The static water contact angle decreased from 89° to 50-65°, and the hydrophilic property of the modified membrane was enhanced. The water flux increased from 4.29 L m-2 h-1 for the pristine PES membrane to 25 L m-2 h-1 for the modified membrane with PGMA chains grafted on it and REDV functional groups immobilized on it; note that the antifouling tests showed that all the modified membranes had the higher flux recovery ratio values (FRR) of above 80% than the pristine PES membrane (about 60%), and the APTT for the modified membrane increased from 46 s to 93 s, indicating that these modified membranes could be applied in the separation and blood purification fields. This journal is © The Royal Society of Chemistry.
WOS研究方向	Chemistry
语种	英语
出版者	Royal Society of Chemistry
WOS记录号	WOS:000481879400002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113927]
专题	材料科学与工程学院
作者单位	1.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 3.School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Niu, Xiaoqin,Li, Dan,Chen, Yuhong,et al. Modification of a polyethersulfone membrane with a block copolymer brush of poly(2-methacryloyloxyethyl phosphorylcholine-: Co-glycidyl methacrylate) and a branched polypeptide chain of Arg-Glu-Asp-Val[J]. RSC Advances,2019,9(44):25274-25284.
APA	Niu, Xiaoqin,Li, Dan,Chen, Yuhong,&Ran, Fen.(2019).Modification of a polyethersulfone membrane with a block copolymer brush of poly(2-methacryloyloxyethyl phosphorylcholine-: Co-glycidyl methacrylate) and a branched polypeptide chain of Arg-Glu-Asp-Val.RSC Advances,9(44),25274-25284.
MLA	Niu, Xiaoqin,et al."Modification of a polyethersulfone membrane with a block copolymer brush of poly(2-methacryloyloxyethyl phosphorylcholine-: Co-glycidyl methacrylate) and a branched polypeptide chain of Arg-Glu-Asp-Val".RSC Advances 9.44(2019):25274-25284.