Sorption and transport of small gas molecules in thermally rearranged (TR) polybenzoxazole membranes based on 2,2-bis(3-amino-4-hydroxyphenyl)-hexafluoropropane (bisAPAF) and 4,4 '-hexafluoroisopropylidene diphthalic anhydride (6FDA)
DC Field | Value | Language |
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dc.contributor.author | Kim, Seungju | - |
dc.contributor.author | Jo, Hye Jin | - |
dc.contributor.author | Lee, Young Moo | - |
dc.date.accessioned | 2022-02-03T01:37:10Z | - |
dc.date.available | 2022-02-03T01:37:10Z | - |
dc.date.created | 2021-05-11 | - |
dc.date.issued | 2013-08 | - |
dc.identifier.issn | 0376-7388 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/134005 | - |
dc.description.abstract | The gas solubility of thermally rearranged polybenzoxazole (TR-PBO) membranes and precursor polymer membranes was determined for five representative small gas molecules, H-2, N-2, O-2, CH4, and CO2, at 35 degrees C and pressures up to 23 atm. Precursor membranes that thermally rearranged to TR-PBO were prepared from 2,2-bis(3-amino-4-hydroxyphenyl)-hexafluoropropane (bisAPAF) and 4,4'-hexafluoroisopropylidene diphthalic anhydride (6FDA) using three different imidization methods. Sorption isotherms of TR-PBO followed the dual-mode sorption model, which is regarded as a typical model for glassy polymers. The Henrys law coefficient (k(D)), Langmuir affinity parameter (b), and Langmuir capacity parameter (C'(H)) were determined using the dual-mode sorption equation. During the thermal rearrangement process, excess free volume in the polymer membrane matrix increased and improved molecular transport was observed. A similar trend of increasing solubility was observed during the thermal rearrangement process. The gas permeability and diffusivity of TR-PBO membranes were also studied using the solution-diffusion model. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Sorption and transport of small gas molecules in thermally rearranged (TR) polybenzoxazole membranes based on 2,2-bis(3-amino-4-hydroxyphenyl)-hexafluoropropane (bisAPAF) and 4,4 '-hexafluoroisopropylidene diphthalic anhydride (6FDA) | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Young Moo | - |
dc.identifier.doi | 10.1016/j.memsci.2013.03.054 | - |
dc.identifier.scopusid | 2-s2.0-84877060505 | - |
dc.identifier.wosid | 000320694300001 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MEMBRANE SCIENCE, v.441, pp.1 - 8 | - |
dc.relation.isPartOf | JOURNAL OF MEMBRANE SCIENCE | - |
dc.citation.title | JOURNAL OF MEMBRANE SCIENCE | - |
dc.citation.volume | 441 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 8 | - |
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 | GLASSY-POLYMERS | - |
dc.subject.keywordPlus | 3,3&apos | - |
dc.subject.keywordPlus | -DIHYDROXY-4,4&apos | - |
dc.subject.keywordPlus | -DIAMINO-BIPHENYL HAB | - |
dc.subject.keywordPlus | CARBON-DIOXIDE | - |
dc.subject.keywordPlus | SEPARATION | - |
dc.subject.keywordPlus | PERMEATION | - |
dc.subject.keywordPlus | HYDROCARBON | - |
dc.subject.keywordPlus | DIFFUSION | - |
dc.subject.keywordPlus | CAPTURE | - |
dc.subject.keywordPlus | ROUTES | - |
dc.subject.keywordAuthor | Thermally rearranged | - |
dc.subject.keywordAuthor | Polybenzoxazole | - |
dc.subject.keywordAuthor | Dual mode sorption | - |
dc.subject.keywordAuthor | Solubility coefficient | - |
dc.subject.keywordAuthor | Solution diffusion model | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0376738813002573?via%3Dihub | - |
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