دورية أكاديمية
Cross-Linked Polyimide/ZIF-8 Mixed-Matrix Membranes by In Situ Formation of ZIF-8: Effect of Cross-Linking on Their Propylene/Propane Separation
| العنوان: | Cross-Linked Polyimide/ZIF-8 Mixed-Matrix Membranes by In Situ Formation of ZIF-8: Effect of Cross-Linking on Their Propylene/Propane Separation |
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| المؤلفون: | Sunghwan Park, Hae-Kwon Jeong |
| المصدر: | Membranes, Vol 12, Iss 10, p 964 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Chemical technology LCC:Chemical engineering |
| مصطلحات موضوعية: | mixed-matrix membrane, zeolitic imidazolate framework, polymer cross-linking, in situ growth, propylene/propane separation, Chemical technology, TP1-1185, Chemical engineering, TP155-156 |
| الوصف: | Despite their potential for the scalable production of mixed-matrix membranes (MMMs), the MMMs prepared by the polymer-modification-enabled in situ metal–organic framework formation (PMMOF) process showed a considerable reduction in gas permeability as the filler loading increased. It was hypothesized that a correlation existed between the decrease in permeability and the change in the properties of the polymer, such as free volume and chain flexibility, upon in situ MOF formation. Herein, we aim to address the permeability reduction by using a cross-linked polyimide (6FDA-DAM:DABA (3:2)). It was found the degree of cross-linking affected not only the properties of the polymer, but also the in situ formation of the ZIF-8 filler particles in the cross-linked polymer. The proper degree of cross-linking resulted in suppressing C3H6 permeability reduction, suggesting a possible strategy to overcome the issue of PMMOF. The swelling of the polymer followed by chain rearrangement during the PMMOF, as well as the structural rigidity of the polymer, were found to be critical in mitigating permeability reduction. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2077-0375 |
| Relation: | https://www.mdpi.com/2077-0375/12/10/964; https://doaj.org/toc/2077-0375 |
| DOI: | 10.3390/membranes12100964 |
| URL الوصول: | https://doaj.org/article/5e26f00a3d644b38bcc64279dda188d0 |
| رقم الأكسشن: | edsdoj.5e26f00a3d644b38bcc64279dda188d0 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20770375 |
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| DOI: | 10.3390/membranes12100964 |