Water sorption, proton conduction, and methanol permeation properties of sulfonated polyimide membranes cross-linked with N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES)
DC Field | Value | Language |
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dc.contributor.author | Lee, Chang Hyun | - |
dc.contributor.author | Parkm, Ho Buma, | - |
dc.contributor.author | Chung, Youn Suk | - |
dc.contributor.author | Lee, Young Moo | - |
dc.contributor.author | Freeman, Benny D | - |
dc.date.accessioned | 2022-12-21T12:13:49Z | - |
dc.date.available | 2022-12-21T12:13:49Z | - |
dc.date.created | 2022-08-26 | - |
dc.date.issued | 2006-01 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/181887 | - |
dc.description.abstract | Sulfonated polyimide (SPI) membranes consisting of 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA), 3,5-diaminobenzoic acid (DBA), and 4,4'-diaminodiphenyl ether 2.2'-disulfonic acid (SODA) were synthesized over a wide range of DBA/SODA molar compositions. A sulfonic acid-containing cross-linking agent, N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES), was Subsequently used to induce cross-linking between sulfonated polyimide chains via a thermally activated reaction. Efforts to prevent excessive water swelling due to the high degree of sulfonation and to avoid undesirable molecular transport by cross-linking typically resulted in a reduction of ion conductivity due to the blockage of a hydrophilic channel or loss of the water pocket after cross-linking. To solve this problem, a sulfonic acid-containing compound was used as both a cross-linking agent and a proton carrier. One of the main goals of this Study was to compensate for the probable loss of ion conductivity due to cross-linking by using a cross-linker that included a fixed charge group. As expected, the BES-cross-linked SPI membranes showed excellent proton conductivity (i.e., sigma = 0. 1 S cm(-1) at 90 degrees C and relative humidity (RH) of 90%) and low methanol permeability (i.e., P = 1.6 x 10(-7) cm(2) s(-1)). Proton conductivity increased and methanol permeability decreased with BES content, which is completely contrary to typical behavior as both properties are normally reduced by further cross-linking. In addition, the effect of cross-linking without a fixed charged group (-SO3H) on the transport and permeation properties was compared with that of BES in crosslinked SPI membranes. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Water sorption, proton conduction, and methanol permeation properties of sulfonated polyimide membranes cross-linked with N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES) | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Young Moo | - |
dc.identifier.doi | 10.1021/ma052226y | - |
dc.identifier.scopusid | 2-s2.0-31544478818 | - |
dc.identifier.wosid | 000235004900039 | - |
dc.identifier.bibliographicCitation | MACROMOLECULES, v.39, no.2, pp.755 - 764 | - |
dc.relation.isPartOf | MACROMOLECULES | - |
dc.citation.title | MACROMOLECULES | - |
dc.citation.volume | 39 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 755 | - |
dc.citation.endPage | 764 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | POLY(ARYLENE ETHER SULFONE) | - |
dc.subject.keywordPlus | FUEL-CELL APPLICATION | - |
dc.subject.keywordPlus | POLYPHOSPHAZENE MEMBRANES | - |
dc.subject.keywordPlus | IONOMER MEMBRANES | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | POLYELECTROLYTES | - |
dc.subject.keywordPlus | COPOLYMERS | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | KETONE) | - |
dc.subject.keywordPlus | LINKING | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/ma052226y | - |
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