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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 PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume604Pages:12
AbstractA 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.
KeywordPolyimides TR polymers High rigidity Hydrogen separation Membranes
DOI10.1016/j.memsci.2020.118053
Language英语
WOS KeywordGAS PERMEATION PROPERTIES ; POSITION FUNCTIONAL-GROUP ; PRECURSOR SYNTHESIS ROUTE ; TROGERS BASE ; INTRINSIC MICROPOROSITY ; POLYIMIDE MEMBRANES ; HIGH-PERFORMANCE ; MOLECULAR-SIEVE ; TRANSPORT ; POLYBENZOXAZOLES
Funding ProjectTechnology Development Program to Solve Climate Change through the National Research Foundation (NRF) - Ministry of Science and ICT, South Korea[2018M1A2A2061979]
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
Funding OrganizationTechnology Development Program to Solve Climate Change through the National Research Foundation (NRF) - Ministry of Science and ICT, South Korea
WOS IDWOS:000545790200007
PublisherELSEVIER
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41285
Collection中国科学院过程工程研究所
Corresponding AuthorLee, Young Moo
Affiliation1.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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