{"title":"Advanced zwitterionic polymeric membranes for diverse applications beyond antifouling","authors":"","doi":"10.1016/j.seppur.2024.129848","DOIUrl":null,"url":null,"abstract":"<div><div>Zwitterionic polymers, characterized by their possession of both cationic and anionic groups, are overall electrically neutral and capable of forming hydration layers on surfaces through hydrogen bonding and electrostatic interactions. In aqueous environments, these polymers stabilize water molecules with their hydrophilic headgroups, whereas their hydrophobic components assist in repelling oil molecules. Zwitterionic polymers dynamically adjust their charge distribution and intermolecular interactions in response to environmental changes such as pH and salinity variations, thereby maintaining their anti-fouling and oleophobic properties. Thus, modifying material surfaces with zwitterionic polymers is considered a particularly promising strategy for combating material fouling. This article focuses on the methods and mechanisms of membrane modification based on zwitterionic polymers, as well as their applications in anti-fouling and other domains. The focus of the discussion is on the modification techniques and mechanistic features of membranes based on zwitterionic polymers, including preformation surface modification and postformation surface enhancement. The topics under discussion include applications in oil–water separation, dye separation, seawater desalination, and antibiofouling. This important review also explores potential strategies and applications for addressing the unresolved challenges associated with zwitterionic polymer-modified membranes.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1383586624035871","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
Zwitterionic polymers, characterized by their possession of both cationic and anionic groups, are overall electrically neutral and capable of forming hydration layers on surfaces through hydrogen bonding and electrostatic interactions. In aqueous environments, these polymers stabilize water molecules with their hydrophilic headgroups, whereas their hydrophobic components assist in repelling oil molecules. Zwitterionic polymers dynamically adjust their charge distribution and intermolecular interactions in response to environmental changes such as pH and salinity variations, thereby maintaining their anti-fouling and oleophobic properties. Thus, modifying material surfaces with zwitterionic polymers is considered a particularly promising strategy for combating material fouling. This article focuses on the methods and mechanisms of membrane modification based on zwitterionic polymers, as well as their applications in anti-fouling and other domains. The focus of the discussion is on the modification techniques and mechanistic features of membranes based on zwitterionic polymers, including preformation surface modification and postformation surface enhancement. The topics under discussion include applications in oil–water separation, dye separation, seawater desalination, and antibiofouling. This important review also explores potential strategies and applications for addressing the unresolved challenges associated with zwitterionic polymer-modified membranes.
期刊介绍:
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.