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| Thermally rearranged polymer membranes containing highly rigid biphenyl ortho-hydroxyl diamine for hydrogen separation | |
| Hu, Xiaofan1; Lee, Won Hee1; Zhao, Jiayi2; Kim, Ju Sung1; Wang, Zhen2,3; Yan, Jingling3; Zhuang, Yongbing4; Lee, Young Moo1 | |
| 2020-06-01 | |
| Source Publication | JOURNAL OF MEMBRANE SCIENCE
 |
| ISSN | 0376-7388 |
| Volume | 604Pages:12 |
| Abstract | A novel bulky and rigid ortho-hydroxyl diamine, 3,3'-diamino-5,5',6,6'-tetramethyl-[1,1'-biphenyl]-2,2'-diol (TMBDA), was synthesized for gas separation membranes in this study. The chemical structure of TMBDA with four methyl groups and a fixed twist biphenyl center was rationally designed, and consequently presented a superior energy barrier of rotation, which efficiently suppressed chain motion and enhanced polymer rigidity. Four types of TMBDA-based polyimides (PIs) were prepared with two commercially available dianhydrides, i.e., 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) and pyromellitic dianhydride (PMDA), from two different synthetic routes, azeotropic and chemical imidization. Thermally rearranged (TR) polymers were obtained from TMBDA-based PIs by thermal treatment at various temperatures. Thermal properties and physicochemical characteristics of TMBDA-based PIs and TR polymers were investigated. The resulting polymers exhibited high glass transition temperatures (T-g) and contorted backbone structures with three discrete d-spacing values, where the smallest interchain d-spacing was located between the kinetic diameters of H-2 and CH4 molecules. Moreover, TMBDA-based TR polymers showed outstanding performances in hydrogen separation with comparable H-2 permeability and higher selectivity than reported TRs. For instance, 6F-TM-Ac-425 exhibited a H-2 permeability of 325 Barrer with H-2/CH4 and H-2/N-2 selectivities of 50 and 39, respectively, approaching to the 2008 Robeson upper bound. |
| Keyword | Polyimides TR polymers High rigidity Hydrogen separation Membranes |
| DOI | 10.1016/j.memsci.2020.118053 |
| Language | 英语 |
| WOS Keyword | GAS PERMEATION PROPERTIES ; POSITION FUNCTIONAL-GROUP ; PRECURSOR SYNTHESIS ROUTE ; TROGERS BASE ; INTRINSIC MICROPOROSITY ; POLYIMIDE MEMBRANES ; HIGH-PERFORMANCE ; MOLECULAR-SIEVE ; TRANSPORT ; POLYBENZOXAZOLES |
| Funding Project | Technology Development Program to Solve Climate Change through the National Research Foundation (NRF) - Ministry of Science and ICT, South Korea[2018M1A2A2061979] |
| WOS Research Area | Engineering ; Polymer Science |
| WOS Subject | Engineering, Chemical ; Polymer Science |
| Funding Organization | Technology Development Program to Solve Climate Change through the National Research Foundation (NRF) - Ministry of Science and ICT, South Korea |
| WOS ID | WOS:000545790200007 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/41285 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Lee, Young Moo |
| Affiliation | 1.Hanyang Univ, Coll Engn, Dept Energy Engn, Seoul 04763, South Korea 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, Lab Polymer Composites Engn, Changchun, Peoples R China 4.Univ Chinese Acad Sci, Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Hu, Xiaofan,Lee, Won Hee,Zhao, Jiayi,et al. Thermally rearranged polymer membranes containing highly rigid biphenyl ortho-hydroxyl diamine for hydrogen separation[J]. JOURNAL OF MEMBRANE SCIENCE,2020,604:12. |
| APA | Hu, Xiaofan.,Lee, Won Hee.,Zhao, Jiayi.,Kim, Ju Sung.,Wang, Zhen.,...&Lee, Young Moo.(2020).Thermally rearranged polymer membranes containing highly rigid biphenyl ortho-hydroxyl diamine for hydrogen separation.JOURNAL OF MEMBRANE SCIENCE,604,12. |
| MLA | Hu, Xiaofan,et al."Thermally rearranged polymer membranes containing highly rigid biphenyl ortho-hydroxyl diamine for hydrogen separation".JOURNAL OF MEMBRANE SCIENCE 604(2020):12. |
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