High performance crosslinked polyvinylidene fluoride (PVDF) membranes for solvent permeation

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2025-01-23 DOI:10.1016/j.reactfunctpolym.2025.106174

Boyuan Hao, Waleed Jarman, Hao Peng, Kang Li

{"title":"High performance crosslinked polyvinylidene fluoride (PVDF) membranes for solvent permeation","authors":"Boyuan Hao, Waleed Jarman, Hao Peng, Kang Li","doi":"10.1016/j.reactfunctpolym.2025.106174","DOIUrl":null,"url":null,"abstract":"<div><div>Membrane based organic solvent separation is a promising membrane technology of separating solutes from organic solvents in an energy efficient way. However, current commercial polymeric membranes commonly used in aqueous based separations are not suitable for a wide range of organic solvents, exposure to which can lead to swelling, dissolution, or degradation of the membrane materials, compromising separation performance. Here, we prepared a crosslinked PVDF membrane with high permeance of solvents and good solvent resistance achieved by the combined crystallization and diffusion (CCD) method, followed by post-crosslinking the resultant membranes to achieve its solvent resistance. The change of membrane properties was investigated with crosslinking time. A thorough comparison of various diamine crosslinkers (XDA, HDA, DETA, EDA) was also performed. The resultant membrane leads to very high permeances at over 1700 LMH bar<sup>−1</sup> for various organic solvents such as n-hexane, toluene, methanol, acetonitrile, etc. at the membrane pore size of 40 nm. This crosslinked PVDF membrane is not only useful for organic solvent ultrafiltration (OSU) but can also be used as a support for developing thin film composite (TFC) membranes in more selective organic solvent separation applications.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106174"},"PeriodicalIF":4.5000,"publicationDate":"2025-01-23","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/S1381514825000264","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}

引用次数: 0

Abstract

Membrane based organic solvent separation is a promising membrane technology of separating solutes from organic solvents in an energy efficient way. However, current commercial polymeric membranes commonly used in aqueous based separations are not suitable for a wide range of organic solvents, exposure to which can lead to swelling, dissolution, or degradation of the membrane materials, compromising separation performance. Here, we prepared a crosslinked PVDF membrane with high permeance of solvents and good solvent resistance achieved by the combined crystallization and diffusion (CCD) method, followed by post-crosslinking the resultant membranes to achieve its solvent resistance. The change of membrane properties was investigated with crosslinking time. A thorough comparison of various diamine crosslinkers (XDA, HDA, DETA, EDA) was also performed. The resultant membrane leads to very high permeances at over 1700 LMH bar⁻¹ for various organic solvents such as n-hexane, toluene, methanol, acetonitrile, etc. at the membrane pore size of 40 nm. This crosslinked PVDF membrane is not only useful for organic solvent ultrafiltration (OSU) but can also be used as a support for developing thin film composite (TFC) membranes in more selective organic solvent separation applications.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

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.