{"title":"聚偏氟乙烯（PVDF）微滤膜接枝改性聚合物的可控构建","authors":"Xiyue Wang, Shuangshuang Wang, Xinru Fan, Weikai Yuan, Tonghui Zhang, Yuchao Li","doi":"10.1016/j.reactfunctpolym.2024.105925","DOIUrl":null,"url":null,"abstract":"<div><p>Polyvinylidene fluoride (PVDF) has been recognized as one of the most crucial polymer membrane materials in separation fields. However, its intrinsic hydrophobicity and susceptibility to contamination impose limitations on its wide applications. In this study, we focused on enhancing the hydrophilicity properties of PVDF microporous membranes by grafting structure-controllable zwitterionic poly (sulfobetaine methacrylate) (PSBMA) onto them. This grafting process was achieved through activators regenerated by electron transfer ATRP (ARGET-ATRP) combined with N-hydroxyphthalimide (NHPI) catalysis. The structural characteristics, morphology, water affinity, anti-fouling performance, and oil-water emulsion separation ability of the grafted modified PVDF membrane were systematically investigated. The experimental results revealed upon reaching a certain threshold of grafting degree (GD), the modified membranes exhibited excellent hydrophilicity with a significant reduction in water contact angle. Moreover, in comparison with the original PVDF membrane, PSBMA grafting modified PVDF membrane showed superior resistance to protein fouling and improved efficiency in oil/water emulsion separation. This work presents an efficient and straightforward method for controllable grafting modification of PVDF.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Controllable construction of zwitterionic polymer grafting modified polyvinylidene fluoride (PVDF) microfiltration membrane\",\"authors\":\"Xiyue Wang, Shuangshuang Wang, Xinru Fan, Weikai Yuan, Tonghui Zhang, Yuchao Li\",\"doi\":\"10.1016/j.reactfunctpolym.2024.105925\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Polyvinylidene fluoride (PVDF) has been recognized as one of the most crucial polymer membrane materials in separation fields. However, its intrinsic hydrophobicity and susceptibility to contamination impose limitations on its wide applications. In this study, we focused on enhancing the hydrophilicity properties of PVDF microporous membranes by grafting structure-controllable zwitterionic poly (sulfobetaine methacrylate) (PSBMA) onto them. This grafting process was achieved through activators regenerated by electron transfer ATRP (ARGET-ATRP) combined with N-hydroxyphthalimide (NHPI) catalysis. The structural characteristics, morphology, water affinity, anti-fouling performance, and oil-water emulsion separation ability of the grafted modified PVDF membrane were systematically investigated. The experimental results revealed upon reaching a certain threshold of grafting degree (GD), the modified membranes exhibited excellent hydrophilicity with a significant reduction in water contact angle. Moreover, in comparison with the original PVDF membrane, PSBMA grafting modified PVDF membrane showed superior resistance to protein fouling and improved efficiency in oil/water emulsion separation. This work presents an efficient and straightforward method for controllable grafting modification of PVDF.</p></div>\",\"PeriodicalId\":20916,\"journal\":{\"name\":\"Reactive & Functional Polymers\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.5000,\"publicationDate\":\"2024-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reactive & Functional Polymers\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1381514824001007\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reactive & Functional Polymers","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1381514824001007","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Controllable construction of zwitterionic polymer grafting modified polyvinylidene fluoride (PVDF) microfiltration membrane
Polyvinylidene fluoride (PVDF) has been recognized as one of the most crucial polymer membrane materials in separation fields. However, its intrinsic hydrophobicity and susceptibility to contamination impose limitations on its wide applications. In this study, we focused on enhancing the hydrophilicity properties of PVDF microporous membranes by grafting structure-controllable zwitterionic poly (sulfobetaine methacrylate) (PSBMA) onto them. This grafting process was achieved through activators regenerated by electron transfer ATRP (ARGET-ATRP) combined with N-hydroxyphthalimide (NHPI) catalysis. The structural characteristics, morphology, water affinity, anti-fouling performance, and oil-water emulsion separation ability of the grafted modified PVDF membrane were systematically investigated. The experimental results revealed upon reaching a certain threshold of grafting degree (GD), the modified membranes exhibited excellent hydrophilicity with a significant reduction in water contact angle. Moreover, in comparison with the original PVDF membrane, PSBMA grafting modified PVDF membrane showed superior resistance to protein fouling and improved efficiency in oil/water emulsion separation. This work presents an efficient and straightforward method for controllable grafting modification of PVDF.
期刊介绍：
Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers.
Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.
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