Effect of the chemical structure of various diamines on the gas separation of thermally rearranged poly(benzoxazole-co-imide) (TR-PBO-co-I) membranes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Soo, Chye Yang | - |
dc.contributor.author | Jo, Hye Jin | - |
dc.contributor.author | Lee, Young Moo | - |
dc.contributor.author | Quay, Jeffrey R. | - |
dc.contributor.author | Murphy, M. Keith | - |
dc.date.accessioned | 2022-02-03T01:36:45Z | - |
dc.date.available | 2022-02-03T01:36:45Z | - |
dc.date.created | 2021-05-11 | - |
dc.date.issued | 2013-10 | - |
dc.identifier.issn | 0376-7388 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/133996 | - |
dc.description.abstract | We investigated the effects of the polymer chemical structure on the gas separation performances of thermally rearranged poly(benzoxazole-co-imide) (TR-PBO-co-I) membranes. Eight non-TR-able aromatic diamines, one TR-able hydroxyl diamine, and one dianhydride were utilized to synthesize precursors of TR-PBO-co-I. For comparison, a thermally rearranged (TR) polybenzoxazole (PBO) homopolymer precursor was also synthesized from the same type of dianhydride and hydroxy diamine. All precursors were fabricated into membranes and thermally treated in the solid state to produce TR-PBO-co-I/TR-PBO membranes. It was confirmed that the non-polar bulky side groups in the diamines disrupted polymer chain packing and increased the fractional free volume (FFV) most effectively, resulting in increased gas permeabilities. A significant increase of the polymer rotational mobility imposed by the non-TR-able diamines promoted higher chain rotational motion which resulted in higher gas permeabilities. The percentage of conversion, which should affect the gas permeabilities, was very similar in all TR-PBO-co-I/TR-PBO membranes. Therefore, it was not a main factor in influencing the gas permeability of the TR-PBO-co-I/TR-PBO membranes. The gas selectivities of small gas molecules were improved if the non-TR-able diamines had a somewhat flat and rigid structure. The gas selectivities were also found to be much higher in the TR-PBO-co-I copolymer membranes compared to the TR-PBO homopolymer membrane. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Effect of the chemical structure of various diamines on the gas separation of thermally rearranged poly(benzoxazole-co-imide) (TR-PBO-co-I) membranes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Young Moo | - |
dc.identifier.doi | 10.1016/j.memsci.2013.05.056 | - |
dc.identifier.scopusid | 2-s2.0-84879536678 | - |
dc.identifier.wosid | 000321749200037 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MEMBRANE SCIENCE, v.444, pp.365 - 377 | - |
dc.relation.isPartOf | JOURNAL OF MEMBRANE SCIENCE | - |
dc.citation.title | JOURNAL OF MEMBRANE SCIENCE | - |
dc.citation.volume | 444 | - |
dc.citation.startPage | 365 | - |
dc.citation.endPage | 377 | - |
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 | Engineering | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | AROMATIC POLYIMIDES | - |
dc.subject.keywordPlus | TRANSPORT PROPERTIES | - |
dc.subject.keywordPlus | FREE-VOLUME | - |
dc.subject.keywordPlus | PERMEABILITY | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordPlus | POLYBENZOXAZOLE | - |
dc.subject.keywordPlus | PERMEATION | - |
dc.subject.keywordPlus | SERIES | - |
dc.subject.keywordAuthor | Thermally rearranged | - |
dc.subject.keywordAuthor | Polybenzoxazole | - |
dc.subject.keywordAuthor | Polybenzoxazole-co-imide | - |
dc.subject.keywordAuthor | Polyimide | - |
dc.subject.keywordAuthor | Fractional free volume | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0376738813004778?via%3Dihub | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.