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Sun X, Di M, Liu J, Gao L, Yan X, He G. Continuous Covalent Organic Frameworks Membranes: From Preparation Strategies to Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303757. [PMID: 37381640 DOI: 10.1002/smll.202303757] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/30/2023] [Indexed: 06/30/2023]
Abstract
Covalent organic frameworks (COFs) are porous crystalline polymeric materials formed by the covalent bonding of organic units. The abundant organic units library gives the COFs species diversity, easily tuned pore channels, and pore sizes. In addition, the periodic arrangement of organic units endows COFs regular and highly connected pore channels, which has led to the rapid development of COFs in membrane separations. Continuous defect-free and high crystallinity of COF membranes is the key to their application in separations, which is the most important issue to be addressed in the research. This review article describes the linkage types of covalent bonds, synthesis methods, and pore size regulation strategies of COFs materials. Further, the preparation strategies of continuous COFs membranes are highlighted, including layer-by-layer (LBL) stacking, in situ growth, interfacial polymerization (IP), and solvent casting. The applications in separation fields of continuous COFs membranes are also discussed, including gas separation, water treatment, organic solvent nanofiltration, ion conduction, and energy battery membranes. Finally, the research results are summarized and the future prospect for the development of COFs membranes are outlined. More attention may be paid to the large-scale preparation of COFs membranes and the development of conductive COFs membranes in future research.
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Affiliation(s)
- Xiaojun Sun
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Mengting Di
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Jie Liu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Li Gao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Xiaoming Yan
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
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Nath S, Puthukkudi A, Mohapatra J, Bommakanti S, Chandrasekhar N, Biswal BP. Carbon-Carbon Linked Organic Frameworks: An Explicit Summary and Analysis. Macromol Rapid Commun 2023; 44:e2200950. [PMID: 36625406 DOI: 10.1002/marc.202200950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Indexed: 01/11/2023]
Abstract
Organic frameworks with carbon-carbon (CC) linkage are an important class of materials owing to their outstanding chemical stability and extended π-electron delocalization resulting in unique optoelectronic properties. In the first part of this review article, the design principles for the bottom-up synthesis of 2D and 3D sp/sp2 CC linked organic frameworks are summarized. Representative reaction methodologies, such as Knoevenagel condensation, Aldol condensation, Horner-Wadsworth-Emmons reaction, Wittig reaction, and coupling reactions (Ullmann, Suzuki, Heck, Yamamoto, etc.) are included. This is discussed in the context of their reaction mechanism, reaction dynamics, and whether and why resulting in an amorphous or crystalline product. This is followed by a discussion of different state-of-the art bottom-up synthesis methodologies, like solvothermal, interfacial, and solid-state synthesis. In the second part, the structure-property relationships in CC linked organic frameworks with representative examples of organocatalysis, photo(electro)catalysis, energy storage and conversion, magnetism, and molecular storage and separation are analyzed. The importance of linkage type, building blocks, topology, and crystallinity of the framework material in connection with the structure-property relationship is highlighted. Finally, brief concluding remarks are presented based on the key development of bottom-up synthetic methods and provide perspectives for future development in this field.
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Affiliation(s)
- Satyapriya Nath
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, Jatni, Khurda, Odisha, 752050, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Adithyan Puthukkudi
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, Jatni, Khurda, Odisha, 752050, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Jeebanjyoti Mohapatra
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, Jatni, Khurda, Odisha, 752050, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Suresh Bommakanti
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, Jatni, Khurda, Odisha, 752050, India
| | - Naisa Chandrasekhar
- Centre for Advancing Electronics Dresden (cfaed), Department of Chemistry and Food Chemistry, Dresden University of Technology, Momenstrasse 4, 01069, Dresden, Germany
| | - Bishnu P Biswal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, Jatni, Khurda, Odisha, 752050, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400094, India
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Aydin S, Altintas C, Keskin S. High-Throughput Screening of COF Membranes and COF/Polymer MMMs for Helium Separation and Hydrogen Purification. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21738-21749. [PMID: 35481770 PMCID: PMC9100491 DOI: 10.1021/acsami.2c04016] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Hundreds of covalent organic frameworks (COFs) have been synthesized, and thousands of them have been computationally designed. However, it is impractical to experimentally test each material as a membrane for gas separations. In this work, we focused on the membrane-based gas separation performances of experimentally synthesized COFs and hypothetical COFs (hypoCOFs). Gas permeabilities of COFs were computed by combining the results of grand canonical Monte Carlo (GCMC) and molecular dynamics (MD) simulations, and many COF membranes were found to overcome the upper bound of polymeric membranes for He/H2, N2/CH4, H2/N2, He/CH4, H2/CH4, and He/N2 separations. We then examined the structure-permeability relations of the COF membranes that are above the upper bound for each of the six gas separations, and based on these relations, we proposed an efficient approach for the selection of the best hypoCOFs from a very large database. Molecular simulations showed that 120 hypoCOFs that we identified to be promising based on these structure-performance relations exceed the upper bound for He/CH4, He/N2, H2/CH4, and H2/N2 separations. Both real and hypothetical COFs were then studied as fillers in 25 different polymers, leading to a total of 29 020 COF/polymer and hypoCOF/polymer mixed matrix membranes (MMMs), representing the largest number of COF-based MMMs investigated to date. Permeabilities and selectivities of COF/polymer MMMs were computed for six different gas separations, and results revealed that 18 of the 25 polymers can be carried above the upper bound when COFs were used as fillers. The comprehensive analysis of COFs provided in this work will fully unlock the potential of COF membranes and COF/polymer MMMs for helium separation and hydrogen purification.
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Affiliation(s)
- Sena Aydin
- Department
of Computational Science and Engineering, Koc University, Rumelifeneri
Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Cigdem Altintas
- Department
of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Seda Keskin
- Department
of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- . Phone: +90(212)338
1362
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Evans AM, Strauss MJ, Corcos AR, Hirani Z, Ji W, Hamachi LS, Aguilar-Enriquez X, Chavez AD, Smith BJ, Dichtel WR. Two-Dimensional Polymers and Polymerizations. Chem Rev 2021; 122:442-564. [PMID: 34852192 DOI: 10.1021/acs.chemrev.0c01184] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Synthetic chemists have developed robust methods to synthesize discrete molecules, linear and branched polymers, and disordered cross-linked networks. However, two-dimensional polymers (2DPs) prepared from designed monomers have been long missing from these capabilities, both as objects of chemical synthesis and in nature. Recently, new polymerization strategies and characterization methods have enabled the unambiguous realization of covalently linked macromolecular sheets. Here we review 2DPs and 2D polymerization methods. Three predominant 2D polymerization strategies have emerged to date, which produce 2DPs either as monolayers or multilayer assemblies. We discuss the fundamental understanding and scope of each of these approaches, including: the bond-forming reactions used, the synthetic diversity of 2DPs prepared, their multilayer stacking behaviors, nanoscale and mesoscale structures, and macroscale morphologies. Additionally, we describe the analytical tools currently available to characterize 2DPs in their various isolated forms. Finally, we review emergent 2DP properties and the potential applications of planar macromolecules. Throughout, we highlight achievements in 2D polymerization and identify opportunities for continued study.
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Affiliation(s)
- Austin M Evans
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael J Strauss
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States
| | - Amanda R Corcos
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zoheb Hirani
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States
| | - Woojung Ji
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States
| | - Leslie S Hamachi
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, California 93407, United States
| | - Xavier Aguilar-Enriquez
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States
| | - Anton D Chavez
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States
| | - Brian J Smith
- Department of Chemistry, Bucknell University,1 Dent Drive, Lewisburg, Pennsylvania 17837, United States
| | - William R Dichtel
- Department of Chemistry, Northwestern University, 1425 Sheridan Road, Evanston, Illinois 60208, United States
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Yang T, Pang H, Chen Z, Duan C, Yuan B, Yan S. Synthesis and enhanced CO 2/CH 4 selectivity of hyperbranched copolyimide membranes. HIGH PERFORM POLYM 2021. [DOI: 10.1177/0954008320987290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of hyperbranched copolyimides (co-HBPIs), as the completely symmetrical tetraamine monomer successfully incorporated into the linear polyimide 6FDA-ODA, were synthesized under the chemical imidization after the gel formation was avoided, as to more effectively separate CO2/CH4. CO2/CH4 selectivity (74%) was observed to be improved significantly under 7‰ tetraamine contents at 2 bar and 35°C; thus, the acceptable CO2 permeability was maintained compared with the pure membrane, exceeding the 1991 upper bound. Moreover, the as-prepared membrane with 6FDA-ODA-7‰ was reported to exhibit higher CO2/CH4 selectivity (109.14) at 10 bar and 35°C. Accordingly, the hyperbranched copolyimides will be promising candidates as membrane materials for the further separation of CO2/CH4 gas pair.
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Affiliation(s)
- Tao Yang
- School of Chemical Engineering and Technology, Dalian University of Technology, Dalian, China
- Key Laboratory of Membrane and Membrane Process, CenerTech Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin, China
| | - Hongchang Pang
- School of Chemical Engineering and Technology, Dalian University of Technology, Dalian, China
| | - Zan Chen
- Key Laboratory of Membrane and Membrane Process, CenerTech Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin, China
| | - Cuijia Duan
- Key Laboratory of Membrane and Membrane Process, CenerTech Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin, China
| | - Biao Yuan
- Key Laboratory of Membrane and Membrane Process, CenerTech Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin, China
| | - Shuo Yan
- Key Laboratory of Membrane and Membrane Process, CenerTech Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin, China
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Komamura T, Nabae Y, Hayakawa T. Self-assembly of Crosslinked Polyimides Templated by Block Copolymers for Fabrication of Porous Films. J PHOTOPOLYM SCI TEC 2021. [DOI: 10.2494/photopolymer.34.431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Takahiro Komamura
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology
| | - Yuta Nabae
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology
| | - Teruaki Hayakawa
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology
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7
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Mallakpour S, Azadi E, Hussain CM. Emerging new-generation hybrids based on covalent organic frameworks for industrial applications. NEW J CHEM 2021. [DOI: 10.1039/d1nj00609f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review highlights the advancement of COF hybrid-based materials for diverse industrial applications.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Islamic Republic of Iran
| | - Elham Azadi
- Organic Polymer Chemistry Research Laboratory
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Islamic Republic of Iran
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Bi X, Zhang Y, Zhang F, Zhang S, Wang Z, Jin J. MOF Nanosheet-Based Mixed Matrix Membranes with Metal-Organic Coordination Interfacial Interaction for Gas Separation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:49101-49110. [PMID: 33063985 DOI: 10.1021/acsami.0c14639] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the mixed matrix membrane (MMM), the interface between the filler and the polymer matrix will directly affect the gas separation performance of the membranes. Reasonable interfacial design in MMMs is thus important and necessary. In this work, metal-organic coordination interaction is used to construct the interface in metal-organic framework (MOF) nanosheet-based polyimide MMMs where ultrathin Co-benzenedicarboxylate MOF nanosheets (CBMNs) with a thickness less than 5 nm and a lateral size more than 5 μm are synthesized as fillers and a carboxyl-functionalized polyimide (6FDA-durene-DABA) is used as a polymer matrix. Because of the high aspect ratio (>1000) of CBMNs, abundant metal-organic coordination bonds are formed between Co2+ in CBMNs and the -COOH group in 6FDA-durene-DABA. As a result, the 6FDA-durene-DABA/CBMN MMMs exhibit improved separation performance for the CO2/CH4 and H2/CH4 gas pairs with H2/CH4 and CO2/CH4 selectivities up to 42.0 ± 4.0 and 33.6 ± 3.0, respectively. The enhanced interfacial interaction leads to the comprehensive separation performance of CO2/CH4 and H2/CH4 gas pairs approaching or surpassing the 2008 Robeson upper bound. In addition, the CO2 plasticization pressure of the MMMs is significantly enhanced up to ∼20 bar, which is 2 times that of the pure 6FDA-durene-DABA membrane. When separating a mixed gas of CO2/CH4, the selectivity of CO2/CH4 remains stable at around 23 and the CO2 permeability keeps around 400 barrer during the long-term test.
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Affiliation(s)
- Xiangyu Bi
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yong'an Zhang
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Feng Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Shenxiang Zhang
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Zhenggong Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jian Jin
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
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Ren Y, Liang X, Dou H, Ye C, Guo Z, Wang J, Pan Y, Wu H, Guiver MD, Jiang Z. Membrane-Based Olefin/Paraffin Separations. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001398. [PMID: 33042752 PMCID: PMC7539199 DOI: 10.1002/advs.202001398] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/27/2020] [Indexed: 06/11/2023]
Abstract
Efficient olefin/paraffin separation is a grand challenge because of their similar molecular sizes and physical properties, and is also a priority in the modern chemical industry. Membrane separation technology has been demonstrated as a promising technology owing to its low energy consumption, mild operation conditions, tunability of membrane materials, as well as the integration of physical and chemical mechanisms. In this work, inspired by the physical mechanism of mass transport in channel proteins and the chemical mechanism of mass transport in carrier proteins, recent progress in channel-based and carrier-based membranes toward olefin/paraffin separations is summarized. Further, channel-based membranes are categorized into membranes with network structures and with framework structures according to the morphology of channels. The separation mechanisms, separation performance, and membrane stability in channel-based and carrier-based membranes are elaborated. Future perspectives toward membrane-based olefin/paraffin separation are proposed.
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Affiliation(s)
- Yanxiong Ren
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin300072P. R. China
| | - Xu Liang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin300072P. R. China
| | - Haozhen Dou
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072P. R. China
| | - Chumei Ye
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin300072P. R. China
| | - Zheyuan Guo
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin300072P. R. China
| | - Jianyu Wang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin300072P. R. China
| | - Yichang Pan
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech UniversityNanjing210009P. R. China
| | - Hong Wu
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin300072P. R. China
| | - Michael D. Guiver
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin300072P. R. China
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin300072P. R. China
- Joint School of National University of Singapore and Tianjin UniversityInternational Campus of Tianjin UniversityBinhai New CityFuzhou350207P. R. China
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Wang J, Xiong S, Tao J, Liu C, Tang J, Pan C, Jian X, Yu G. An Azo-bridged porous organic polymers modified poly(phthalazinone ether sulfone ketone) membrane for efficient O2/N2 separation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Synthesis and gas transport properties of hyperbranched network polyimides derived from Tris(4-aminophenyl)benzene. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122776] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Liu P, Wu M, Li L, Luo X, Cheng Y, Dong H, Chen H, Wang W, Liu H, Wang WH, Lu F, Cho K. Ideal two-dimensional molecular sieves for gas separation: Metal trihalides MX3 with precise atomic pores. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117786] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Deng G, Luo J, Liu S, Wang Y, Zong X, Xue S. Molecular design and characterization of new polyimides based on binaphthyl-ether diamines for gas separation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116218] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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