1
|
Darban MA, Lock SSM, Ilyas SU, Kang DY, Othman MHD, Yiin CL, Waqas S, Bashir Z. Molecular simulation of [P8883][Tf 2N] ionic liquid decorated silica in 6FDA-ODA based mixed matrix membrane for enhanced CO 2/CH 4 separation. RSC Adv 2024; 14:22894-22915. [PMID: 39040689 PMCID: PMC11261340 DOI: 10.1039/d4ra02851a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 05/31/2024] [Indexed: 07/24/2024] Open
Abstract
Mixed-matrix membranes (MMMs) have been reported to have considerable scope in gas separation applications because of their merged inherent strength of a durable polymer matrix and the exceptional performance capabilities of inorganic fillers. The selection of comparatively suitable polymers with fillers that can match each other and boost interfacial compatibility while ensuring uniform dispersion of filler within the polymer is still intensively demanding and is challenging at the experimental scale. Ionic liquids (ILs) are effective in promoting better dispersion and compatibility, leading to improved separation performance. A computational molecular simulation approach is employed in current work to design a hybrid membrane having Trioctapropyl phosphonium bis(trifluoromethylsulfonyl)imide [P8883][Tf2N] IL decorated silica as a filler and 4,4'-(hexafluoroisopropylidene)diphthalic anhydride-4,4'-oxydianiline (6FDA-ODA) polymer for carbon dioxide (CO2) separation from methane (CH4). Thermophysical and gas transport properties under pure and mixed gas condition (30, 50, and 70% CO2/CH4) within the MMMs with varying filler loadings (5, 10, and 15 wt% IL-silica) are examined via Grand Canonical Monte Carlo (GCMC) and Molecular Dynamics (MD) simulations. Membrane characteristics like glass transition temperature (T g), Fractional Free Volume (v f), X-Ray Diffraction (XRD), solubility, diffusivity, permeability, and selectivity for neat and IL-silica filled 6FDA-ODA are computed. The results show that the T g of the composite membrane with 5 wt% IL-silica is found to be considerably higher (with 305 °C) than that of the pure 6FDA-ODA polymer having 298 °C. A higher T g value highlights the effective dispersion and higher adhesion between the filler and polymer membrane. Additionally, CO2 permeability for 5 wt% IL-silica/6FDA-ODA MMM is significantly improved, measuring 319.0 barrer while maintaining a CO2/CH4 selectivity of 16.2. These values are 89% and 56% respectively, greater than the corresponding values of neat 6FDA-ODA membrane. Published data from the literature review is used to validate the findings and guarantee their reliability. The obtained results exhibited an error in the range of 0.7-9%. Hence, it is concluded from the study that molecular simulation can be used to design IL decorated silica incorporated within 6FDA-ODA matrix, which is able to boost the interfacial compatibility, with elevated CO2/CH4 selectivity and CO2 permeability.
Collapse
Affiliation(s)
- Mehtab Ali Darban
- Centre of Carbon Capture, Utilisation and Storage (CCCUS), Universiti Teknologi PETRONAS Seri Iskandar 32610 Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS Seri Iskandar 32610 Malaysia
| | - Serene Sow Mun Lock
- Centre of Carbon Capture, Utilisation and Storage (CCCUS), Universiti Teknologi PETRONAS Seri Iskandar 32610 Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS Seri Iskandar 32610 Malaysia
| | - Suhaib Umer Ilyas
- Chemical Engineering Department, University of Jeddah Jeddah 23890 Kingdom of Saudi Arabia
| | - Dun-Yen Kang
- Department of Chemical Engineering, National Taiwan University Taipei 10617 Taiwan
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia (UTM) 81310, Skudai Johor Bahru Malaysia
| | - Chung Loong Yiin
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS) 94300 Kota Samarahan Sarawak Malaysia
- Institute of Sustainable and Renewable Energy (ISuRE), Universiti Malaysia Sarawak (UNIMAS) 94300 Kota Samarahan Sarawak Malaysia
| | - Sharjeel Waqas
- Department of Chemical Engineering, Universiti Teknologi PETRONAS Seri Iskandar 32610 Malaysia
| | - Zunara Bashir
- Centre of Carbon Capture, Utilisation and Storage (CCCUS), Universiti Teknologi PETRONAS Seri Iskandar 32610 Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS Seri Iskandar 32610 Malaysia
| |
Collapse
|
2
|
Hirosawa F, Watanabe K, Miyagawa M, Takaba H. Direct evaluation of void effect on gas permeation in mixed matrix membrane by non-equilibrium molecular dynamics. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
|
3
|
Ricci E, Minelli M, De Angelis MG. Modelling Sorption and Transport of Gases in Polymeric Membranes across Different Scales: A Review. MEMBRANES 2022; 12:membranes12090857. [PMID: 36135877 PMCID: PMC9502097 DOI: 10.3390/membranes12090857] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/24/2022] [Accepted: 08/27/2022] [Indexed: 06/02/2023]
Abstract
Professor Giulio C. Sarti has provided outstanding contributions to the modelling of fluid sorption and transport in polymeric materials, with a special eye on industrial applications such as membrane separation, due to his Chemical Engineering background. He was the co-creator of innovative theories such as the Non-Equilibrium Theory for Glassy Polymers (NET-GP), a flexible tool to estimate the solubility of pure and mixed fluids in a wide range of polymers, and of the Standard Transport Model (STM) for estimating membrane permeability and selectivity. In this review, inspired by his rigorous and original approach to representing membrane fundamentals, we provide an overview of the most significant and up-to-date modeling tools available to estimate the main properties governing polymeric membranes in fluid separation, namely solubility and diffusivity. The paper is not meant to be comprehensive, but it focuses on those contributions that are most relevant or that show the potential to be relevant in the future. We do not restrict our view to the field of macroscopic modelling, which was the main playground of professor Sarti, but also devote our attention to Molecular and Multiscale Hierarchical Modeling. This work proposes a critical evaluation of the different approaches considered, along with their limitations and potentiality.
Collapse
Affiliation(s)
- Eleonora Ricci
- Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum—University of Bologna, 40126 Bologna, Italy
| | - Matteo Minelli
- Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum—University of Bologna, 40126 Bologna, Italy
| | - Maria Grazia De Angelis
- Institute for Materials and Processes, School of Engineering, University of Edinburgh, Edinburgh EH9 3FB, UK
| |
Collapse
|
4
|
Wang C, Cui Z, Song J, Wang Z. Molecular simulation study on the separation of CO2 and N2 in poly(4 methyl-1-pentene) membrane. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Yoshimoto Y, Tomita Y, Sato K, Higashi S, Yamato M, Takagi S, Kawakami H, Kinefuchi I. Gas Adsorption and Diffusion Behaviors in Interfacial Systems Composed of a Polymer of Intrinsic Microporosity and Amorphous Silica: A Molecular Simulation Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:7567-7579. [PMID: 35666952 DOI: 10.1021/acs.langmuir.2c00661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We investigate the adsorption and diffusion behaviors of CO2, CH4, and N2 in interfacial systems composed of a polymer of intrinsic microporosity (PIM-1) and amorphous silica using grand canonical Monte Carlo (GCMC) and molecular dynamics (MD) simulations. We build model systems of mixed matrix membranes (MMMs) with PIM-1 chains sandwiched between silica surfaces. Gas adsorption analysis using GCMC simulations shows that gas molecules are preferentially adsorbed in microcavities distributed near silica surfaces, resulting in an increase in the solubility coefficients of CO2, CH4, and N2 compared to bulk PIM-1. In contrast, diffusion coefficients obtained from MD simulations and then calibrated using the dual-mode sorption model show different tendencies depending on gas species: CO2 diffusivity decreases in MMMs compared to PIM-1, whereas CH4 and N2 diffusivities increase. These differences are attributed to competing effects of silica surfaces: the emergence of larger pores as a result of chain packing disruption, which enhances gas diffusion, and a quadrupole-dipole interaction between gas molecules and silica surface hydroxyl groups, which retards gas diffusion. The former has a greater impact on CH4 and N2 diffusivities, whereas the latter has a greater impact on CO2 diffusivity due to the strong quadrupole-dipole interaction between CO2 and surface hydroxyls. These findings add to our understanding of gas adsorption and diffusion behaviors in the vicinity of PIM-1/silica interfaces, which are unobtainable in experimental studies.
Collapse
Affiliation(s)
- Yuta Yoshimoto
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuiko Tomita
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kohei Sato
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shiori Higashi
- Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Masafumi Yamato
- Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Shu Takagi
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroyoshi Kawakami
- Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Ikuya Kinefuchi
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| |
Collapse
|
6
|
Balçık M, Tantekin-Ersolmaz SB, Pinnau I, Ahunbay MG. CO2/CH4 mixed-gas separation in PIM-1 at high pressures: Bridging atomistic simulations with process modeling. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
7
|
Salahshoori I, Seyfaee A, Babapoor A, Neville F, Moreno-Atanasio R. Evaluation of the effect of silica nanoparticles, temperature and pressure on the performance of PSF/PEG/SiO2 mixed matrix membranes: A molecular dynamics simulation (MD) and design of experiments (DOE) study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115957] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
8
|
|
9
|
DeFelice J, Lipson JEG. The influence of additives on polymer matrix mobility and the glass transition. SOFT MATTER 2021; 17:376-387. [PMID: 33169780 DOI: 10.1039/d0sm01634a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the region near an interface, the microscopic properties of a glass forming liquid may be perturbed from their equilibrium bulk values. In this work, we probe how the interfacial effects of additive particles dispersed in a matrix can influence the local mobility of the material and its glass transition temperature, Tg. Experimental measurements and simulation results indicate that additives, such as nanoparticles, gas molecules, and oligomers, can shift the mobility and Tg of a surrounding polymer matrix (even for relatively small concentrations of additive; e.g., 5-10% by volume) relative to the pure bulk matrix, thus leading to Tg enhancement or suppression. Additives thus provide a potential route for modifying the properties of a polymer material without significantly changing its chemical composition. Here we apply the Limited Mobility (LM) model to simulate a matrix containing additive species. We show that both additive concentration, as well as the strength of its very local influence on the surrounding matrix material, will determine whether the Tg of the system is raised or lowered, relative to the pure matrix. We demonstrate that incorporation of additives into the simple LM simulation method, which has successfully described the behavior of bulk and thin film glassy solids, leads to direct connections with available experimental and simulation results for a broad range of polymer/additive systems.
Collapse
Affiliation(s)
- Jeffrey DeFelice
- Department of Chemistry, Dartmouth College, Hanover, NH 03755, USA.
| | - Jane E G Lipson
- Department of Chemistry, Dartmouth College, Hanover, NH 03755, USA.
| |
Collapse
|
10
|
Ahmad MZ, Castro-Muñoz R, Budd PM. Boosting gas separation performance and suppressing the physical aging of polymers of intrinsic microporosity (PIM-1) by nanomaterial blending. NANOSCALE 2020; 12:23333-23370. [PMID: 33210671 DOI: 10.1039/d0nr07042d] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In recent decades, polymers of intrinsic microporosity (PIMs), especially the firstly introduced PIM-1, have been actively explored for various membrane-based separation purposes and widely recognized as the next generation membrane materials of choice for gas separation due to their ultra-permeable characteristics. Unfortunately, the polymers suffer substantially the negative impacts of physical aging, a phenomenon that is primarily noticeable in high free volume polymers. The phenomenon occurs at the molecular level, which leads to changes in the physical properties, and consequently the separation performance and membrane durability. This review discusses the strategies that have been employed to manage the physical aging issue, with a focus on the approach of blending with nanomaterials to give mixed matrix membranes. A detailed discussion is provided on the types of materials used, their inherent properties, the effects on gas separation performance, and their benefits in the suppression of the aging problem.
Collapse
Affiliation(s)
- Mohd Zamidi Ahmad
- Organic Materials Innovation Center (OMIC), Department of Chemistry, University of Manchester, Oxford Road, M13 9PL, UK.
| | | | | |
Collapse
|
11
|
Anstine DM, Colina CM. Sorption‐induced
polymer rearrangement: approaches from molecular modeling. POLYM INT 2020. [DOI: 10.1002/pi.6124] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Dylan M Anstine
- Department of Materials Science and Engineering University of Florida Gainesville FL USA
- George & Josephine Butler Polymer Research Laboratory University of Florida Gainesville FL USA
| | - Coray M Colina
- Department of Materials Science and Engineering University of Florida Gainesville FL USA
- George & Josephine Butler Polymer Research Laboratory University of Florida Gainesville FL USA
- Department of Chemistry University of Florida Gainesville FL USA
| |
Collapse
|
12
|
Saberi M, Rouhi P, Teimoori M. Estimation of dual mode sorption parameters for CO2 in the glassy polymers using group contribution approach. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117481] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
Fuoco A, Satilmis B, Uyar T, Monteleone M, Esposito E, Muzzi C, Tocci E, Longo M, De Santo MP, Lanč M, Friess K, Vopička O, Izák P, Jansen JC. Comparison of pure and mixed gas permeation of the highly fluorinated polymer of intrinsic microporosity PIM-2 under dry and humid conditions: Experiment and modelling. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117460] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
14
|
Abdulhamid MA, Genduso G, Wang Y, Ma X, Pinnau I. Plasticization-Resistant Carboxyl-Functionalized 6FDA-Polyimide of Intrinsic Microporosity (PIM–PI) for Membrane-Based Gas Separation. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04994] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mahmoud A. Abdulhamid
- Advanced Membranes and Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Giuseppe Genduso
- Advanced Membranes and Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Yingge Wang
- Advanced Membranes and Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaohua Ma
- Advanced Membranes and Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Ingo Pinnau
- Advanced Membranes and Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| |
Collapse
|
15
|
Sorption of CO2/CH4 mixtures in TZ-PIM, PIM-1 and PTMSP: Experimental data and NELF-model analysis of competitive sorption and selectivity in mixed gases. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.05.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
16
|
Vergadou N, Theodorou DN. Molecular Modeling Investigations of Sorption and Diffusion of Small Molecules in Glassy Polymers. MEMBRANES 2019; 9:E98. [PMID: 31398889 PMCID: PMC6723301 DOI: 10.3390/membranes9080098] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 11/16/2022]
Abstract
With a wide range of applications, from energy and environmental engineering, such as in gas separations and water purification, to biomedical engineering and packaging, glassy polymeric materials remain in the core of novel membrane and state-of the art barrier technologies. This review focuses on molecular simulation methodologies implemented for the study of sorption and diffusion of small molecules in dense glassy polymeric systems. Basic concepts are introduced and systematic methods for the generation of realistic polymer configurations are briefly presented. Challenges related to the long length and time scale phenomena that govern the permeation process in the glassy polymer matrix are described and molecular simulation approaches developed to address the multiscale problem at hand are discussed.
Collapse
Affiliation(s)
- Niki Vergadou
- Molecular Thermodynamics and Modelling of Materials Laboratory, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research Demokritos, Aghia Paraskevi Attikis, GR-15310 Athens, Greece.
| | - Doros N Theodorou
- School of Chemical Engineering, National Technical University of Athens, GR 15780 Athens, Greece
| |
Collapse
|
17
|
Číhal P, Vopička O, Durďáková TM, Budd PM, Harrison W, Friess K. Pervaporation and vapour permeation of methanol – dimethyl carbonate mixtures through PIM-1 membranes. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.02.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
18
|
Ricci E, De Angelis MG. Modelling Mixed-Gas Sorption in Glassy Polymers for CO₂ Removal: A Sensitivity Analysis of the Dual Mode Sorption Model. MEMBRANES 2019; 9:membranes9010008. [PMID: 30621225 PMCID: PMC6359057 DOI: 10.3390/membranes9010008] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 11/29/2018] [Accepted: 12/20/2018] [Indexed: 11/16/2022]
Abstract
In an effort to reduce the experimental tests required to characterize the mixed-gas solubility and solubility-selectivity of materials for membrane separation processes, there is a need for reliable models which involve a minimum number of adjustable parameters. In this work, the ability of the Dual Mode Sorption (DMS) model to represent the sorption of CO2/CH4 mixtures in three high free volume glassy polymers, poly(trimethylsilyl propyne) (PTMSP), the first reported polymer of intrinsic microporosity (PIM-1) and tetrazole-modified PIM-1 (TZ-PIM), was tested. The sorption of gas mixtures in these materials suitable for CO2 separation has been characterized experimentally in previous works, which showed that these systems exhibit rather marked deviations from the ideal pure-gas behavior, especially due to competitive effects. The accuracy of the DMS model in representing the non-idealities that arise during mixed-gas sorption was assessed in a wide range of temperatures, pressures and compositions, by comparing with the experimental results available. Using the parameters obtained from the best fit of pure-gas sorption isotherms, the agreement between the mixed-gas calculations and the experimental data varied greatly in the different cases inspected, especially in the case of CH4 absorbed in mixed-gas conditions. A sensitivity analysis revealed that pure-gas data can be represented with the same accuracy by several different parameter sets, which, however, yield markedly different mixed-gas predictions, that, in some cases, agree with the experimental data only qualitatively. However, the multicomponent calculations with the DMS model yield more reliable results than the use of pure-gas data in the estimation of the solubility-selectivity of the material.
Collapse
Affiliation(s)
- Eleonora Ricci
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131, Bologna, Italy.
| | - Maria Grazia De Angelis
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131, Bologna, Italy.
| |
Collapse
|
19
|
Lanč M, Pilnáček K, Mason CR, Budd PM, Rogan Y, Malpass-Evans R, Carta M, Gándara BC, McKeown NB, Jansen JC, Vopička O, Friess K. Gas sorption in polymers of intrinsic microporosity: The difference between solubility coefficients determined via time-lag and direct sorption experiments. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.10.048] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
20
|
Ma J, Nie Y, Wang B. Simulation study on the relationship between the crosslinking degree and structure, hydrophobic behavior for poly (styrene-co-divinylbenzene) copolymer. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
21
|
Kupgan G, Demidov AG, Colina CM. Plasticization behavior in polymers of intrinsic microporosity (PIM-1): A simulation study from combined Monte Carlo and molecular dynamics. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.08.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
22
|
Affiliation(s)
- Qisong Xu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576 Singapore
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576 Singapore
| |
Collapse
|
23
|
Affiliation(s)
- Sylvie Neyertz
- Univ. Savoie Mont Blanc, Univ. Grenoble Alpes, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
| | - David Brown
- Univ. Savoie Mont Blanc, Univ. Grenoble Alpes, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
| |
Collapse
|
24
|
Biondo LD, Duarte J, Zeni M, Godinho M. A Dual-mode model interpretation of CO2/CH4 permeability in polysulfone membranes at low pressures. AN ACAD BRAS CIENC 2018; 90:1855-1864. [PMID: 29898119 DOI: 10.1590/0001-3765201820170221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 10/04/2017] [Indexed: 11/22/2022] Open
Abstract
An asymmetric membrane of polysulfone (PSf) was synthesized by phase inversion method. Permeation experiments were carried out between 2 to 5 bar pressure, and at temperatures 20 to 45°C. The dense-selective layer of PSf membrane presents regular thickness (about 5 µm), and was not possible to observe the formation of macrovoids in porous layer. The CO2 permeability through membrane was 18.8 Barrer at 35°C and 2 bar pressure, and this relationship between the pressure and the CO2 permeability was described adequately by Dual-mode model. The absence of CH4 permeability at 2 and 3 bar pressure, qualifies the PSf membrane for gases separation with high selectivity in this range.
Collapse
Affiliation(s)
- Lucas D Biondo
- Exact Sciences Center and Technologies/PPGEPROTEC, Caxias do Sul University/UCS, Av. Francisco Getúlio Vargas, 1130, Petrópolis, 95070-560 Caxias do Sul, RS, Brazil
| | - Jocelei Duarte
- Exact Sciences Center and Technologies/PPGEPROTEC, Caxias do Sul University/UCS, Av. Francisco Getúlio Vargas, 1130, Petrópolis, 95070-560 Caxias do Sul, RS, Brazil
| | - Mara Zeni
- Exact Sciences Center and Technologies/PPGEPROTEC, Caxias do Sul University/UCS, Av. Francisco Getúlio Vargas, 1130, Petrópolis, 95070-560 Caxias do Sul, RS, Brazil
| | - Marcelo Godinho
- Exact Sciences Center and Technologies/PPGEPROTEC, Caxias do Sul University/UCS, Av. Francisco Getúlio Vargas, 1130, Petrópolis, 95070-560 Caxias do Sul, RS, Brazil
| |
Collapse
|
25
|
Satilmis B, Lanč M, Fuoco A, Rizzuto C, Tocci E, Bernardo P, Clarizia G, Esposito E, Monteleone M, Dendisová M, Friess K, Budd PM, Jansen JC. Temperature and pressure dependence of gas permeation in amine-modified PIM-1. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.03.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
26
|
Kupgan G, Abbott LJ, Hart KE, Colina CM. Modeling Amorphous Microporous Polymers for CO2 Capture and Separations. Chem Rev 2018; 118:5488-5538. [DOI: 10.1021/acs.chemrev.7b00691] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Grit Kupgan
- Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
- George & Josephine Butler Polymer Research Laboratory, University of Florida, Gainesville, Florida 32611, United States
- Center for Macromolecular Science & Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Lauren J. Abbott
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kyle E. Hart
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Coray M. Colina
- Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
- George & Josephine Butler Polymer Research Laboratory, University of Florida, Gainesville, Florida 32611, United States
- Center for Macromolecular Science & Engineering, University of Florida, Gainesville, Florida 32611, United States
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| |
Collapse
|
27
|
Balçık M, Ahunbay MG. Prediction of CO2-induced plasticization pressure in polyimides via atomistic simulations. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.10.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
28
|
Zorn R, Yin H, Lohstroh W, Harrison W, Budd PM, Pauw BR, Böhning M, Schönhals A. Anomalies in the low frequency vibrational density of states for a polymer with intrinsic microporosity – the Boson peak of PIM-1. Phys Chem Chem Phys 2018; 20:1355-1363. [DOI: 10.1039/c7cp07141h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
For the first time the low frequency vibrational density of states is reported for a polymer with intrinsic microporosity.
Collapse
Affiliation(s)
- Reiner Zorn
- Jülich Centre for Neutron Science JCNS and Institute for Complex Systems ICS
- Forschungszentrum Jülich
- 52425 Jülich
- Germany
| | - Huajie Yin
- Bundesanstalt für Materialforschung und-prüfung (BAM)
- 12205 Berlin
- Germany
| | - Wiebke Lohstroh
- Heinz Maier-Leibnitz Zentrum (MLZ)
- Technische Universität München
- 85748 Garching
- Germany
| | - Wayne Harrison
- The University of Manchester
- School of Chemistry
- Manchester M13 9PL
- UK
| | - Peter M. Budd
- The University of Manchester
- School of Chemistry
- Manchester M13 9PL
- UK
| | - Brian R. Pauw
- Bundesanstalt für Materialforschung und-prüfung (BAM)
- 12205 Berlin
- Germany
| | - Martin Böhning
- Bundesanstalt für Materialforschung und-prüfung (BAM)
- 12205 Berlin
- Germany
| | - Andreas Schönhals
- Bundesanstalt für Materialforschung und-prüfung (BAM)
- 12205 Berlin
- Germany
| |
Collapse
|
29
|
Ricci E, Minelli M, De Angelis MG. A multiscale approach to predict the mixed gas separation performance of glassy polymeric membranes for CO 2 capture: the case of CO 2 /CH 4 mixture in Matrimid ®. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.05.068] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
30
|
Tiwari RR, Jin J, Freeman B, Paul D. Physical aging, CO 2 sorption and plasticization in thin films of polymer with intrinsic microporosity (PIM-1). J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.04.069] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
31
|
Golzar K, Modarress H, Amjad-Iranagh S. Effect of pristine and functionalized single- and multi-walled carbon nanotubes on CO 2 separation of mixed matrix membranes based on polymers of intrinsic microporosity (PIM-1): a molecular dynamics simulation study. J Mol Model 2017; 23:266. [PMID: 28823034 DOI: 10.1007/s00894-017-3436-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 08/01/2017] [Indexed: 11/27/2022]
Abstract
Molecular dynamics (MD) and grand canonical Monte Carlo (GCMC) simulations were conducted to investigate the transport properties of carbon dioxide, methane, nitrogen, and oxygen through pure and mixed matrix membranes (MMMs) based on polymers of intrinsic microporosity (PIM-1). For this purpose, first, 0.5 to 3 wt% of pristine single-walled carbon nanotube (p-SWCNT) and multi-walled carbon nanotube (p-MWCNT) were embedded into the pure PIM-1, and then for better dispersion of CNT particles into the polymer matrix and to improve the performance of the resulting MMMs, polyethylene glycol (PEG) functionalized SWCNT and MWCNT (f-SWCNT and f-MWCNT, respectively) were loaded. The characterization of the obtained MMMs was carried out by using density, glass transition temperature, X-ray pattern, and fractional free volume calculations. Comparing the obtained results with the available reported experimental data, indicate the authenticity of the applied simulation approach. The simulation results exhibit that the pristine and PEG-functionalized CNT particles improve the transport properties such as diffusivity, solubility, and permeability of the PIM-1 membranes, without sacrificing their selectivity. Also, the MMMs incorporated with 2 wt% of the functionalized CNT particles indicate better performance for the CO2 separation from other gases. According to the calculated results, the highest permeability and diffusivity for CO2 are observed in the [PIM-1/f-SWCNT] MMM among the other membranes which represent that the loading of the f-SWCNTs can enhance the CO2 separation performance of PIM-1 more than other CNTs studied in this work.
Collapse
Affiliation(s)
- Karim Golzar
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Hamid Modarress
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - Sepideh Amjad-Iranagh
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
| |
Collapse
|
32
|
Church TL, Jasso-Salcedo AB, Björnerbäck F, Hedin N. Sustainability of microporous polymers and their applications. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9068-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
33
|
Dutta RC, Bhatia SK. Transport Diffusion of Light Gases in Polyethylene Using Atomistic Simulations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:936-946. [PMID: 28036185 DOI: 10.1021/acs.langmuir.6b04037] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We explore the temperature dependence of the self-, corrected-, and transport-diffusivities of CO2, CH4, and N2 in a polyethylene (PE) polymer membrane through equilibrium molecular dynamics simulations. We also investigate the morphology of the polymer membrane based on the intermolecular radial distribution function, free volume, and pore size distribution analysis. The results indicate the existence of 1.5-3 Å diameter pores in the PE membrane, and with the increase in the temperature, the polymer swells linearly with changing slope at 450 K in the absence of gas and exponentially in the presence of gas. The gas adsorption isotherms extracted via a two-step methodology, considering the dynamics and structural transitions in the polymer matrix upon gas adsorption, were fitted using a "two-mode sorption" model. Our results suggest that CO2 adsorbs strongly, whereas N2 shows weak adsorption in PE. The results demonstrate that CO2 is more soluble, whereas N2 is least soluble. Further, it is found that an increase in the temperature negatively impacts the solubility of CO2 and CH4 but positively for N2; this reverse solubility behavior is due to increased availability of pores accessible to N2, which are kinetically closed at the lowest temperatures. The reported self-diffusivities of the gases from our simulations are on the order of 10-6 cm2/s, consistent with the experimental evidence, whereas transport-diffusivities are 2 orders of magnitude higher than self-diffusivities. Furthermore, the temperature dependence of the self-diffusivity follows Arrhenius behavior, whereas the transport-diffusivity follows non-Arrhenius behavior having different activation energies in low and high temperature regions. Also, it is seen that loading has little effect on the self- and corrected-diffusion coefficients of all gases in the PE membrane.
Collapse
Affiliation(s)
- Ravi C Dutta
- School of Chemical Engineering, The University of Queensland , Brisbane, Queensland 4072, Australia
| | - Suresh K Bhatia
- School of Chemical Engineering, The University of Queensland , Brisbane, Queensland 4072, Australia
| |
Collapse
|
34
|
Nanosecond-time-scale reversibility of dilation induced by carbon dioxide sorption in glassy polymer membranes. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
35
|
Galizia M, Stevens KA, Smith ZP, Paul DR, Freeman BD. Nonequilibrium Lattice Fluid Modeling of Gas Solubility in HAB-6FDA Polyimide and Its Thermally Rearranged Analogues. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01479] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michele Galizia
- John
J. McKetta Jr. Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street, Austin, Texas 78712, United States
- Center for Energy
and Environmental Resources, 10100
Burnet Rd., Building 133 (CEER), Austin, Texas 78758, United States
| | - Kevin A. Stevens
- John
J. McKetta Jr. Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street, Austin, Texas 78712, United States
- Center for Energy
and Environmental Resources, 10100
Burnet Rd., Building 133 (CEER), Austin, Texas 78758, United States
| | - Zachary P. Smith
- Department
of Chemical Engineering, Massachusetts Institute of Technology 25 Ames
Street, Cambridge, Massachusetts 02142, United States
| | - Donald R. Paul
- John
J. McKetta Jr. Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street, Austin, Texas 78712, United States
- Center for Energy
and Environmental Resources, 10100
Burnet Rd., Building 133 (CEER), Austin, Texas 78758, United States
| | - Benny D. Freeman
- John
J. McKetta Jr. Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street, Austin, Texas 78712, United States
- Center for Energy
and Environmental Resources, 10100
Burnet Rd., Building 133 (CEER), Austin, Texas 78758, United States
| |
Collapse
|
36
|
Suleman MS, Lau KK, Yeong YF. Plasticization and Swelling in Polymeric Membranes in CO2Removal from Natural Gas. Chem Eng Technol 2016. [DOI: 10.1002/ceat.201500495] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
37
|
Konnertz N, Ding Y, Harrison WJ, Budd PM, Schönhals A, Böhning M. Molecular Mobility of the High Performance Membrane Polymer PIM-1 as Investigated by Dielectric Spectroscopy. ACS Macro Lett 2016; 5:528-532. [PMID: 35607233 DOI: 10.1021/acsmacrolett.6b00209] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The increasing demand for energy efficient separation processes fosters the development of new high performance polymers as selective separation layers for membranes. PIM-1 is the archetypal representative of the class of polymers of intrinsic microporosity (PIM) which are considered most promising in this sector, especially for gas separations. Since their introduction, PIMs stimulated a vast amount of research in this field and meanwhile evolved to the state-of-the-art in membrane technology for gas separation. The major obstacle for extending the practical membrane application is their strong tendency to physical aging. For the first time, investigations by broadband dielectric spectroscopy (BDS) addressing molecular dynamics and conductivity in PIM-1 are presented. As chain packing during film formation from the casting solution and physical aging are key factors determining the separation performance of PIMs as membrane materials, characterization of the molecular mobility in such materials as revealed by BDS will provide valuable information for further development and optimization.
Collapse
Affiliation(s)
- Nora Konnertz
- Bundesanstalt für Materialforschung und−prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Yi Ding
- Bundesanstalt für Materialforschung und−prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Wayne J. Harrison
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K
| | - Peter M. Budd
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K
| | - Andreas Schönhals
- Bundesanstalt für Materialforschung und−prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Martin Böhning
- Bundesanstalt für Materialforschung und−prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| |
Collapse
|
38
|
Satilmis B, Alnajrani MN, Budd PM. Hydroxyalkylaminoalkylamide PIMs: Selective Adsorption by Ethanolamine- and Diethanolamine-Modified PIM-1. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01196] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Bekir Satilmis
- School
of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | | | - Peter M. Budd
- School
of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| |
Collapse
|
39
|
Burgess SK, Mikkilineni DS, Yu DB, Kim DJ, Mubarak CR, Kriegel RM, Koros WJ. Water sorption in poly(ethylene furanoate) compared to poly(ethylene terephthalate). Part 1: Equilibrium sorption. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.10.047] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
40
|
Gutiérrez C, Rodríguez JF, Gracia I, de Lucas A, García MT. Modification of polystyrene properties by CO2: Experimental study and correlation. J Appl Polym Sci 2014. [DOI: 10.1002/app.41696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Cristina Gutiérrez
- Department of Chemical Engineering; University of Castilla-la Mancha; Campus Universitario; Ciudad Real Spain
| | - Juan Francisco Rodríguez
- Institute of Chemical and Environmental Technology; University of Castilla-la Mancha; Campus Universitario; Ciudad Real Spain
| | - Ignacio Gracia
- Department of Chemical Engineering; University of Castilla-la Mancha; Campus Universitario; Ciudad Real Spain
| | - Antonio de Lucas
- Department of Chemical Engineering; University of Castilla-la Mancha; Campus Universitario; Ciudad Real Spain
| | - M. Teresa García
- Department of Chemical Engineering; University of Castilla-la Mancha; Campus Universitario; Ciudad Real Spain
| |
Collapse
|
41
|
Branken D, Krieg H, Lachmann G, Carstens P. Modelling sorption and diffusion of NF 3 and CF 4 in Teflon AF perfluoropolymer membranes. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.07.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
42
|
|
43
|
Mixed gas sorption in glassy polymeric membranes: II. CO2/CH4 mixtures in a polymer of intrinsic microporosity (PIM-1). J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.02.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
44
|
Neyertz S, Brown D. The effect of structural isomerism on carbon dioxide sorption and plasticization at the interface of a glassy polymer membrane. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.03.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
45
|
Ogieglo W, Wormeester H, Wessling M, Benes NE. Effective medium approximations for penetrant sorption in glassy polymers accounting for excess free volume. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.02.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
46
|
|
47
|
Hao L, Li P, Chung TS. PIM-1 as an organic filler to enhance the gas separation performance of Ultem polyetherimide. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.11.045] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
48
|
|
49
|
Molecular simulation study of PAMAM dendrimer composite membranes. J Mol Model 2014; 20:2119. [DOI: 10.1007/s00894-014-2119-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 12/14/2013] [Indexed: 01/20/2023]
|
50
|
Larsen GS, Hart KE, Colina CM. Predictive simulations of the structural and adsorptive properties for PIM-1 variations. MOLECULAR SIMULATION 2014. [DOI: 10.1080/08927022.2013.829222] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|