聚乙二醇改性冠醚功能化聚砜阴离子交换膜的制备及表征

TQ425.236; 为了实现聚砜基阴离子交换膜(AEMs)高离子导电性和良好的耐碱性,采用绿色环保的方法制备了氯甲基化聚砜,并以氨基冠醚为交联剂,以氨基冠醚络合的金属离子和三乙胺为阳离子基团,制备了三乙胺和氨基冠醚质量分数不同的冠醚功能化聚砜膜(PSF-CEX-QA1-X).通过将低分子质量的聚乙二醇(PEG)引入PSF-CEX-QA1-X)中,探究了PEG对膜性能的影响.结果表明,亲水PEG的存在有助于膜中离子通道的形成;与PSF-CEX-QA1-X相比,PSF-CEX-QA1-X-PEG的电导率和耐碱稳定性均得到了提高;在温度为80℃时,PSF-CE0.1-QA0.9-PEG的电导率为5...

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Published in石油化工高等学校学报 Vol. 37; no. 1; pp. 59 - 65
Main Authors 徐亚宁, 闫佳宁, 王璐璐, 王吉林
Format Journal Article
LanguageChinese
Published 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001 01.02.2024
Subjects
冠醚
聚砜
聚乙二醇
阴离子交换膜
Polyethylene glycol
Crown ether
Anion exchange membrane
Polysulfone
Online AccessGet full text
ISSN1006-396X
DOI10.12422/j.issn.1006-396X.2024.01.008

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Abstract TQ425.236; 为了实现聚砜基阴离子交换膜(AEMs)高离子导电性和良好的耐碱性,采用绿色环保的方法制备了氯甲基化聚砜,并以氨基冠醚为交联剂,以氨基冠醚络合的金属离子和三乙胺为阳离子基团,制备了三乙胺和氨基冠醚质量分数不同的冠醚功能化聚砜膜(PSF-CEX-QA1-X).通过将低分子质量的聚乙二醇(PEG)引入PSF-CEX-QA1-X)中,探究了PEG对膜性能的影响.结果表明,亲水PEG的存在有助于膜中离子通道的形成;与PSF-CEX-QA1-X相比,PSF-CEX-QA1-X-PEG的电导率和耐碱稳定性均得到了提高;在温度为80℃时,PSF-CE0.1-QA0.9-PEG的电导率为56.78 mS/cm,耐碱性测试后其电导率可维持初始电导率的85%.此外,PSF-CEX-QA1-X-PEG还具有良好的尺寸稳定性和热稳定性.
AbstractList TQ425.236; 为了实现聚砜基阴离子交换膜(AEMs)高离子导电性和良好的耐碱性,采用绿色环保的方法制备了氯甲基化聚砜,并以氨基冠醚为交联剂,以氨基冠醚络合的金属离子和三乙胺为阳离子基团,制备了三乙胺和氨基冠醚质量分数不同的冠醚功能化聚砜膜(PSF-CEX-QA1-X).通过将低分子质量的聚乙二醇(PEG)引入PSF-CEX-QA1-X)中,探究了PEG对膜性能的影响.结果表明,亲水PEG的存在有助于膜中离子通道的形成;与PSF-CEX-QA1-X相比,PSF-CEX-QA1-X-PEG的电导率和耐碱稳定性均得到了提高;在温度为80℃时,PSF-CE0.1-QA0.9-PEG的电导率为56.78 mS/cm,耐碱性测试后其电导率可维持初始电导率的85%.此外,PSF-CEX-QA1-X-PEG还具有良好的尺寸稳定性和热稳定性.
Abstract_FL In order to achieve high ionic conductivity and good alkaline resistance of Polysulfone-based AEMs,chloromethylated polysulfone was prepared by green method,and crown ether-functionalized polysulfone membranes with different triethylamine and amino crown ether contents were then prepared using amino crown ether as cross-linking agent and metal ions and triethylamine as cationic groups followed by crown ether functional polysulfone membrane with triethylamine and triethylamine as cationic groups(PSF-CEX-QA1-X).The effect of the addition of polyethylene glycol on the membrane properties was explored by introducing the low molecular weight polyethylene glycol(PEG)into the above polysulfone cross-linking membrane.The results shown that the presence of hydrophilic polyethylene glycol helps to facilitate the formation of ordered ion channels in the membrane.The conductivity and alkali-resistant stability of PSF-CEX-QA1-X-PEG were improved compared to PSF-CEX-QA1-X membrane.Among them,the electrical conductivity of PSF-CE0.1-QA0.9-PEG at 80℃is 56.78 mS/cm,which can retain 85%of the original conductivity after alkaline resistance test.In addition,PSF-CEX-QA1-X-PEG has good dimensional and thermal stability.
Author 王璐璐
闫佳宁
王吉林
徐亚宁
AuthorAffiliation 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
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Author_FL XU Yaning
WANG Lulu
YAN Jianing
WANG Jilin
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DocumentTitle_FL Preparation and Characterization of A Functional Polysulfone Anion Exchange Membrane of Polyethylene Glycol Modified Crown Ether
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Keywords 冠醚
聚砜
聚乙二醇
阴离子交换膜
Polyethylene glycol
Crown ether
Anion exchange membrane
Polysulfone
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PublicationTitle 石油化工高等学校学报
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Title 聚乙二醇改性冠醚功能化聚砜阴离子交换膜的制备及表征
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