Heguo Han , Linjian Sang , Jianhang Qiu , Zheng Liu , Huiting Yu , Qifeng Zhang , Yuxuan Sun , Shenghai Li , Suobo Zhang
{"title":"Polyamide filled crosslinked polyaryletherketone composite membrane with high stability for organic solvent nanofiltration","authors":"Heguo Han , Linjian Sang , Jianhang Qiu , Zheng Liu , Huiting Yu , Qifeng Zhang , Yuxuan Sun , Shenghai Li , Suobo Zhang","doi":"10.1016/j.memsci.2024.123041","DOIUrl":null,"url":null,"abstract":"<div><p>Organic solvent nanofiltration (OSN) is a green, efficient and energy-saving new separation technology. However, it is exigent to membrane materials with both good soluble processability and solvent resistance, as well as methods for preparing composite membranes that combine high accuracy and stability. In this work, a novel polyaryletherketone containing phenylamine structure (PEK-PA) was prepared and used to fabricate a novel solvent resistant composite membrane via strategies of chemical crosslinking and polymer filling into the surface pores of the membrane. The crosslinking between PEK-PA and trimesoyl chloride improves the solvent resistance of the membrane and the strategy of polyamide filling improves the separation accuracy of the membrane. The prepared OSN membranes exhibit exceptional separation accuracy, with a molecular weight cut-off within the range of 214 g mol<sup>−1</sup> to 383 g mol<sup>−1</sup>. More importantly, the prepared membranes exhibit higher stability than the thin-film-composite membranes prepared by interfacial polymerization, which was demonstrated by a designed reverse pressure experiment. The prepared membranes can be continuously operated in DMF for 60 h, thereby demonstrating their excellent stability even for harsh polar aprotic solvents. Therefore, this work presents a novel solvent resistant membrane material with potential applications for OSN.</p></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":null,"pages":null},"PeriodicalIF":8.4000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Membrane Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0376738824006355","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Organic solvent nanofiltration (OSN) is a green, efficient and energy-saving new separation technology. However, it is exigent to membrane materials with both good soluble processability and solvent resistance, as well as methods for preparing composite membranes that combine high accuracy and stability. In this work, a novel polyaryletherketone containing phenylamine structure (PEK-PA) was prepared and used to fabricate a novel solvent resistant composite membrane via strategies of chemical crosslinking and polymer filling into the surface pores of the membrane. The crosslinking between PEK-PA and trimesoyl chloride improves the solvent resistance of the membrane and the strategy of polyamide filling improves the separation accuracy of the membrane. The prepared OSN membranes exhibit exceptional separation accuracy, with a molecular weight cut-off within the range of 214 g mol−1 to 383 g mol−1. More importantly, the prepared membranes exhibit higher stability than the thin-film-composite membranes prepared by interfacial polymerization, which was demonstrated by a designed reverse pressure experiment. The prepared membranes can be continuously operated in DMF for 60 h, thereby demonstrating their excellent stability even for harsh polar aprotic solvents. Therefore, this work presents a novel solvent resistant membrane material with potential applications for OSN.
期刊介绍:
The Journal of Membrane Science is a publication that focuses on membrane systems and is aimed at academic and industrial chemists, chemical engineers, materials scientists, and membranologists. It publishes original research and reviews on various aspects of membrane transport, membrane formation/structure, fouling, module/process design, and processes/applications. The journal primarily focuses on the structure, function, and performance of non-biological membranes but also includes papers that relate to biological membranes. The Journal of Membrane Science publishes Full Text Papers, State-of-the-Art Reviews, Letters to the Editor, and Perspectives.