Concentration Dependencies of Diffusion Permeability of Anion-Exchange Membranes in Sodium Hydrogen Carbonate, Monosodium Phosphate, and Potassium Hydrogen Tartrate Solutions
The concentration dependencies of diffusion permeability of homogeneous (AMX-Sb and AX) and heterogeneous (MA-41 and FTAM-EDI) anion-exchange membranes (AEMs) is obtained in solutions of ampholytes (sodium bicarbonate, NaHCO ; monosodium phosphate, NaH PO ; and potassium hydrogen tartrate, KHT) and...
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| Veröffentlicht in: | Membranes (Basel) 2019-12, Vol.9 (12), p.170 |
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| creator | Pismenskaya, Natalia Sarapulova, Veronika Nevakshenova, Ekaterina Kononenko, Natalia Fomenko, Maria Nikonenko, Victor |
| description | The concentration dependencies of diffusion permeability of homogeneous (AMX-Sb and AX) and heterogeneous (MA-41 and FTAM-EDI) anion-exchange membranes (AEMs) is obtained in solutions of ampholytes (sodium bicarbonate, NaHCO
; monosodium phosphate, NaH
PO
; and potassium hydrogen tartrate, KHT) and a strong electrolyte (sodium chloride, NaCl). It is established that the diffusion permeability of AEMs increases with dilution of the ampholyte solutions, while it decreases in the case of the strong electrolyte solution. The factors causing the unusual form of concentration dependencies of AEMs in the ampholyte solutions are considered: (1) the enrichment of the internal AEM solution with multiply charged counterions and (2) the increase in the pore size of AEMs with dilution of the external solution. The enrichment of the internal solution of AEMs with multiply charged counterions is caused by the Donnan exclusion of protons, which are the products of protolysis reactions. The increase in the pore size is conditioned by the stretching of the elastic polymer matrix due to the penetration of strongly hydrated anions of carbonic, phosphoric, and tartaric acids into the AEMs. |
| doi_str_mv | 10.3390/membranes9120170 |
| format | Article |
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; monosodium phosphate, NaH
PO
; and potassium hydrogen tartrate, KHT) and a strong electrolyte (sodium chloride, NaCl). It is established that the diffusion permeability of AEMs increases with dilution of the ampholyte solutions, while it decreases in the case of the strong electrolyte solution. The factors causing the unusual form of concentration dependencies of AEMs in the ampholyte solutions are considered: (1) the enrichment of the internal AEM solution with multiply charged counterions and (2) the increase in the pore size of AEMs with dilution of the external solution. The enrichment of the internal solution of AEMs with multiply charged counterions is caused by the Donnan exclusion of protons, which are the products of protolysis reactions. The increase in the pore size is conditioned by the stretching of the elastic polymer matrix due to the penetration of strongly hydrated anions of carbonic, phosphoric, and tartaric acids into the AEMs.</description><identifier>ISSN: 2077-0375</identifier><identifier>EISSN: 2077-0375</identifier><identifier>DOI: 10.3390/membranes9120170</identifier><identifier>PMID: 31835564</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Amino acids ; Anion exchanging ; Anions ; Chloride ; Color ; Diffusion ; Dilution ; Electrolytes ; Hot pressing ; Hydrogen ; Investigations ; Membrane permeability ; Membranes ; Permeability ; Polymers ; Pore size ; Potassium ; Protons ; Sodium ; Sodium bicarbonate ; Sodium chloride ; Sodium phosphate</subject><ispartof>Membranes (Basel), 2019-12, Vol.9 (12), p.170</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2019 by the authors. 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c424t-5e59325321be53601fdb2c4421efaddcf0f10324fa55250731bd46517d3486b33</citedby><cites>FETCH-LOGICAL-c424t-5e59325321be53601fdb2c4421efaddcf0f10324fa55250731bd46517d3486b33</cites><orcidid>0000-0001-6344-298X ; 0000-0002-7902-6662</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6950726/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6950726/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31835564$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pismenskaya, Natalia</creatorcontrib><creatorcontrib>Sarapulova, Veronika</creatorcontrib><creatorcontrib>Nevakshenova, Ekaterina</creatorcontrib><creatorcontrib>Kononenko, Natalia</creatorcontrib><creatorcontrib>Fomenko, Maria</creatorcontrib><creatorcontrib>Nikonenko, Victor</creatorcontrib><title>Concentration Dependencies of Diffusion Permeability of Anion-Exchange Membranes in Sodium Hydrogen Carbonate, Monosodium Phosphate, and Potassium Hydrogen Tartrate Solutions</title><title>Membranes (Basel)</title><addtitle>Membranes (Basel)</addtitle><description>The concentration dependencies of diffusion permeability of homogeneous (AMX-Sb and AX) and heterogeneous (MA-41 and FTAM-EDI) anion-exchange membranes (AEMs) is obtained in solutions of ampholytes (sodium bicarbonate, NaHCO
; monosodium phosphate, NaH
PO
; and potassium hydrogen tartrate, KHT) and a strong electrolyte (sodium chloride, NaCl). It is established that the diffusion permeability of AEMs increases with dilution of the ampholyte solutions, while it decreases in the case of the strong electrolyte solution. The factors causing the unusual form of concentration dependencies of AEMs in the ampholyte solutions are considered: (1) the enrichment of the internal AEM solution with multiply charged counterions and (2) the increase in the pore size of AEMs with dilution of the external solution. The enrichment of the internal solution of AEMs with multiply charged counterions is caused by the Donnan exclusion of protons, which are the products of protolysis reactions. 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(Basel)</addtitle><date>2019-12-10</date><risdate>2019</risdate><volume>9</volume><issue>12</issue><spage>170</spage><pages>170-</pages><issn>2077-0375</issn><eissn>2077-0375</eissn><abstract>The concentration dependencies of diffusion permeability of homogeneous (AMX-Sb and AX) and heterogeneous (MA-41 and FTAM-EDI) anion-exchange membranes (AEMs) is obtained in solutions of ampholytes (sodium bicarbonate, NaHCO
; monosodium phosphate, NaH
PO
; and potassium hydrogen tartrate, KHT) and a strong electrolyte (sodium chloride, NaCl). It is established that the diffusion permeability of AEMs increases with dilution of the ampholyte solutions, while it decreases in the case of the strong electrolyte solution. The factors causing the unusual form of concentration dependencies of AEMs in the ampholyte solutions are considered: (1) the enrichment of the internal AEM solution with multiply charged counterions and (2) the increase in the pore size of AEMs with dilution of the external solution. The enrichment of the internal solution of AEMs with multiply charged counterions is caused by the Donnan exclusion of protons, which are the products of protolysis reactions. The increase in the pore size is conditioned by the stretching of the elastic polymer matrix due to the penetration of strongly hydrated anions of carbonic, phosphoric, and tartaric acids into the AEMs.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>31835564</pmid><doi>10.3390/membranes9120170</doi><orcidid>https://orcid.org/0000-0001-6344-298X</orcidid><orcidid>https://orcid.org/0000-0002-7902-6662</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Amino acids Anion exchanging Anions Chloride Color Diffusion Dilution Electrolytes Hot pressing Hydrogen Investigations Membrane permeability Membranes Permeability Polymers Pore size Potassium Protons Sodium Sodium bicarbonate Sodium chloride Sodium phosphate |
| title | Concentration Dependencies of Diffusion Permeability of Anion-Exchange Membranes in Sodium Hydrogen Carbonate, Monosodium Phosphate, and Potassium Hydrogen Tartrate Solutions |
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