Fabrication of ultrafiltration membranes with improved antifouling and antibacterial capability by surface modification of quaternary ammonium

IF 6.3 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2023-07-19 DOI:10.1016/j.eurpolymj.2023.112083

Jiangnan Dai , Shuai Wang , Pan Chen , Xiaohua Tong , Xiaogang Zhao , Chunhai Chen , Hongwei Zhou

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引用次数: 3

Abstract

To minimize the organic/biological contamination, polymeric membranes with tertiary amine groups were synthesized and its surface was modified to obtain three types of quaternary ammonium modified ultrafilters. The antifouling and antibacterial properties of all prepared ultrafilters were studied. The performances differences of ultrafiltration membranes with different alkyl chain lengths of quaternary ammonium salts were explored. The results show that the increase of alkyl chain length of quaternary ammonium salts and the introduction of hydroxyl groups can effectively improve the permeability and anti-pollution performance of ultrafiltration membranes. After one cycle of Bovine serum albumin solution filtration test, the flux recovery ratio of the modified membrane is twice as much as that of the initial membrane, while the flux recovery ratio of the initial ultrafiltration membrane is only 36.6%. At the same time, the modified membrane has excellent antibacterial properties and water flux stability, which is conducive to the long-term use of the membrane.

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季铵表面改性制备抗污抗菌超滤膜

为了减少有机/生物污染，合成了叔胺基聚合物膜，并对其表面进行了改性，得到了三种类型的季铵改性超滤膜。对所制备的超滤膜的防污、抗菌性能进行了研究。探讨了不同烷基链长度的季铵盐超滤膜的性能差异。结果表明，季铵盐烷基链长度的增加和羟基的引入可以有效提高超滤膜的渗透性和抗污染性能。经过一个周期的牛血清白蛋白溶液过滤试验，改性膜的通量回收率是初始膜的两倍，而初始超滤膜的通量回收率仅为36.6%。同时，改性膜具有优异的抗菌性能和水通量稳定性，有利于膜的长期使用。

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来源期刊

European Polymer Journal 化学-高分子科学

CiteScore

9.90

自引率

10.00%

发文量

691

审稿时长

23 days

期刊介绍： European Polymer Journal is dedicated to publishing work on fundamental and applied polymer chemistry and macromolecular materials. The journal covers all aspects of polymer synthesis, including polymerization mechanisms and chemical functional transformations, with a focus on novel polymers and the relationships between molecular structure and polymer properties. In addition, we welcome submissions on bio-based or renewable polymers, stimuli-responsive systems and polymer bio-hybrids. European Polymer Journal also publishes research on the biomedical application of polymers, including drug delivery and regenerative medicine. The main scope is covered but not limited to the following core research areas: Polymer synthesis and functionalization • Novel synthetic routes for polymerization, functional modification, controlled/living polymerization and precision polymers. Stimuli-responsive polymers • Including shape memory and self-healing polymers. Supramolecular polymers and self-assembly • Molecular recognition and higher order polymer structures. Renewable and sustainable polymers • Bio-based, biodegradable and anti-microbial polymers and polymeric bio-nanocomposites. Polymers at interfaces and surfaces • Chemistry and engineering of surfaces with biological relevance, including patterning, antifouling polymers and polymers for membrane applications. Biomedical applications and nanomedicine • Polymers for regenerative medicine, drug delivery molecular release and gene therapy The scope of European Polymer Journal no longer includes Polymer Physics.