| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2024-12-10 |
| タイトル |
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|
タイトル |
Gas-Permeable Carbon Molecular Sieve Membranes Fabricated from a Norbornene-Functionalized Polyimide–Polyhedral Oligomeric Silsesquioxane Composite |
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言語 |
en |
| 作成者 |
Lawal, Sulaiman O.
Watanabe, Kenta
Uchino, Ryohei
Moriyama, Norihiro
Nagasawa, Hiroki
Tsuru, Toshinori
Kanezashi, Masakoto
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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|
言語 |
en |
|
権利情報 |
This document is the Accepted Manuscript version of a Published Work that appeared in final form in INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.iecr.3c03605 |
| 権利情報 |
|
|
言語 |
en |
|
権利情報 |
This is not the published version. Please cite only the published version. |
| 権利情報 |
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|
言語 |
ja |
|
権利情報 |
この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。 |
| 内容記述 |
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|
内容記述 |
Polyhedral oligomeric silsesquioxanes (POSSs) are a promising family of regularly structured silsesquioxanes with resilient cage-like configurations and exterior edges that can be functionalized with various organic groups. In this study, POSS was functionalized with a polyimide–phenylene (PI–Ph) unit, which yielded POSS–PI–Ph to fabricate carbonized-POSS membranes (denoted as carbon-POSS) via inert pyrolysis. Replacing some PI–Ph units with norbornene (NB) increased the amount of residual carbon formed in the carbon-POSS structure. X-ray photoelectron spectroscopy and 29Si nuclear magnetic resonance analysis revealed that residual sp2-hybridized carbon atoms were connected to the POSS cage after pyrolysis at 700 °C. Analysis of single-gas permeation at 200 °C with the carbon-POSS membranes pyrolyzed at different temperatures (200–800 °C) indicated that the permeance of all investigated gases (He, H2, CO2, N2, CH4, CF4, and SF6) increased with increasing membrane pyrolysis temperature. Notably, the early onset of the decline in permeance of large-molecule gases such as CF4 and SF6 at 600 °C ensured a high N2 permeance and ideal N2/SF6 selectivity of 10–6 mol m–2 s–1 Pa–1 and 100, respectively. Overall, this study demonstrates the feasibility of preparing high-performance carbon-POSS-derived membranes by optimizing the NB functionality and the POSS content of the hybrid copolymer precursor. |
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言語 |
en |
| 出版者 |
|
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出版者 |
American Chemical Society |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1021/acs.iecr.3c03605 |
| 開始ページ |
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開始ページ |
1554 |
| 書誌情報 |
en : Industrial & Engineering Chemistry Research
巻 63,
号 3,
p. 1554-1565,
発行日 2024-01-10
|
| 旧ID |
55833 |
IECR_63_1554.pdf (3.0 MB)
