{"title":"磺化聚苯胺改性阴离子交换膜的制备与研究","authors":"N. V. Loza, K. A. Taran, K. A. Kutenko","doi":"10.1134/S2517751622050079","DOIUrl":null,"url":null,"abstract":"<p>Based on the analysis of the results of sorption experiments and the study of the influence of the oxidant nature at different stages of the preparation of composites, a method has been developed for modifying anion exchange membranes with sulfonated polyaniline by in situ oxidative polymerization of 2-aminobenzenesulfonic acid. The formation of the modifier in the membranes has been proven by analyzing the ATR IR spectra of the samples. The study of the physicochemical and transport properties of composite membranes has shown that the synthesis of the modifier leads to a significant decrease in the exchange capacity from 3.41 to 1.65 mmol/g<sub>dry</sub> for the MA-40 membrane and from 0.87 to 0.21 mmol/g<sub>dry</sub> for MA-41. In this case, the electrical conductivity of the composite based on the MA-40 membrane increases by 2 to 3 times in sodium chloride solutions and that of the composite based on the MA-41 membrane decreases by a factor of 1.5–2. The current–voltage characteristics of the composite membranes were found to have asymmetry, which confirms the gradient character of the modifier distribution.</p>","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"4 5","pages":"319 - 327"},"PeriodicalIF":2.0000,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S2517751622050079.pdf","citationCount":"0","resultStr":"{\"title\":\"Preparation and Investigation of Anion Exchange Membranes Modified with Sulfonated Polyaniline\",\"authors\":\"N. V. Loza, K. A. Taran, K. A. Kutenko\",\"doi\":\"10.1134/S2517751622050079\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Based on the analysis of the results of sorption experiments and the study of the influence of the oxidant nature at different stages of the preparation of composites, a method has been developed for modifying anion exchange membranes with sulfonated polyaniline by in situ oxidative polymerization of 2-aminobenzenesulfonic acid. The formation of the modifier in the membranes has been proven by analyzing the ATR IR spectra of the samples. The study of the physicochemical and transport properties of composite membranes has shown that the synthesis of the modifier leads to a significant decrease in the exchange capacity from 3.41 to 1.65 mmol/g<sub>dry</sub> for the MA-40 membrane and from 0.87 to 0.21 mmol/g<sub>dry</sub> for MA-41. In this case, the electrical conductivity of the composite based on the MA-40 membrane increases by 2 to 3 times in sodium chloride solutions and that of the composite based on the MA-41 membrane decreases by a factor of 1.5–2. The current–voltage characteristics of the composite membranes were found to have asymmetry, which confirms the gradient character of the modifier distribution.</p>\",\"PeriodicalId\":700,\"journal\":{\"name\":\"Membranes and Membrane Technologies\",\"volume\":\"4 5\",\"pages\":\"319 - 327\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2022-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1134/S2517751622050079.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Membranes and Membrane Technologies\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S2517751622050079\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Membranes and Membrane Technologies","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2517751622050079","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Preparation and Investigation of Anion Exchange Membranes Modified with Sulfonated Polyaniline
Based on the analysis of the results of sorption experiments and the study of the influence of the oxidant nature at different stages of the preparation of composites, a method has been developed for modifying anion exchange membranes with sulfonated polyaniline by in situ oxidative polymerization of 2-aminobenzenesulfonic acid. The formation of the modifier in the membranes has been proven by analyzing the ATR IR spectra of the samples. The study of the physicochemical and transport properties of composite membranes has shown that the synthesis of the modifier leads to a significant decrease in the exchange capacity from 3.41 to 1.65 mmol/gdry for the MA-40 membrane and from 0.87 to 0.21 mmol/gdry for MA-41. In this case, the electrical conductivity of the composite based on the MA-40 membrane increases by 2 to 3 times in sodium chloride solutions and that of the composite based on the MA-41 membrane decreases by a factor of 1.5–2. The current–voltage characteristics of the composite membranes were found to have asymmetry, which confirms the gradient character of the modifier distribution.
期刊介绍：
The journal Membranes and Membrane Technologies publishes original research articles and reviews devoted to scientific research and technological advancements in the field of membranes and membrane technologies, including the following main topics:novel membrane materials and creation of highly efficient polymeric and inorganic membranes;hybrid membranes, nanocomposites, and nanostructured membranes;aqueous and nonaqueous filtration processes (micro-, ultra-, and nanofiltration; reverse osmosis);gas separation;electromembrane processes and fuel cells;membrane pervaporation and membrane distillation;membrane catalysis and membrane reactors;water desalination and wastewater treatment;hybrid membrane processes;membrane sensors;membrane extraction and membrane emulsification;mathematical simulation of porous structures and membrane separation processes;membrane characterization;membrane technologies in industry (energy, mineral extraction, pharmaceutics and medicine, chemistry and petroleum chemistry, food industry, and others);membranes and protection of environment (“green chemistry”).The journal has been published in Russian already for several years, English translations of the content used to be integrated in the journal Petroleum Chemistry. This journal is a split off with additional topics.
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