Accelerated plasticization of thin-film composite membranes used in gas separation

2001 ◽  
Vol 24 (1-2) ◽  
pp. 223-233 ◽  
Author(s):  
M Wessling ◽  
M Lidon Lopez ◽  
H Strathmann
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Composite Membranes ◽  
Film Composite ◽  
Thin Film Composite

Blends of Fluorinated Additives with Highly Selective Thin-Film Composite Membranes to Increase CO2 Permeability for CO2/N2 Gas Separation Applications

2016 ◽  
Vol 55 (30) ◽  
pp. 8364-8372 ◽  
Author(s):  
Joel M. P. Scofield ◽  
Paul A. Gurr ◽  
Jinguk Kim ◽  
Qiang Fu ◽  
Sandra E. Kentish ◽  
...  
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Composite Membranes ◽  
Film Composite ◽  
Thin Film Composite

Effect of Casting Solution Composition on Properties of PIM-1/PAN Thin Film Composite Membranes

2019 ◽  
Vol 816 ◽  
pp. 167-173 ◽  
Author(s):  
Maya N. Putintseva ◽  
Ilya L. Borisov ◽  
Alexey A. Yushkin ◽  
R.A. Kirk ◽  
P.M. Budd ◽  
...  
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Composite Membranes ◽  
Solution Composition ◽  
Selective Layer ◽  
Film Composite ◽  
Uniform Layer ◽  
Thin Film Composite ◽  
Casting Solution

In this work, PIM-1 thin film composite membranes supported on PAN were developed. The influence of PIM-1 concentration and nature of solvent stabilizer on the structure and gas separation properties of TFC membranes were studied. It was shown that amylene stabilized chloroform as PIM-1 solvent allows membranes to be obtained with a uniform selective layer in the whole range of concentrations used, and the ethanol stabilized chloroform provides a uniform layer at 2 and 4 wt % PIM-1 concentration. The best CO2/N2 selectivities were 35,9 and 39,5 for 4 % wt PIM-1 solution in ethanol and amylene stabilized chloroform, respectively.

Highly selective thin film composite hollow fiber membranes for mixed vapor/gas separation

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 78950-78957 ◽  
Author(s):  
Pravin G. Ingole ◽  
Won Kil Choi ◽  
Il-Hyun Baek ◽  
Hyung Keun Lee
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Hollow Fiber ◽  
Interfacial Polymerization ◽  
Composite Membranes ◽  
Hollow Fiber Membranes ◽  
Film Composite ◽  
Thin Film Composite ◽  
Fiber Membranes ◽  
Polymerization Method

In the present study, thin film composite membranes have been prepared using an interfacial polymerization method.

Importance of small loops within PIM-1 topology on gas separation selectivity in thin film composite membranes

2021 ◽  
Author(s):  
Andrew B. Foster ◽  
Joseph L. Beal ◽  
Marzieh Tamaddondar ◽  
Jose Miguel Luque-Alled ◽  
Ben Robertson ◽  
...  
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
High Selectivity ◽  
Composite Membranes ◽  
Film Composite ◽  
Thin Film Composite ◽  
Polymer Of Intrinsic Microporosity ◽  
Loop Topology ◽  
Intrinsic Microporosity ◽  
Insight Into

Studies of blends of topologically distinct samples of the polymer of intrinsic microporosity PIM-1 provide, for the CO2/N2 gas pair, insight into the optimum loop topology required for high selectivity and permeance of thin film composite (TFC) membranes.

scholarly journals Ultrapermeable Thin Film Composite Membranes Enhanced via Doping MOF Nanosheets

2020 ◽  
Author(s):  
Min Liu ◽  
Ke Xie ◽  
MITCHELL NOTHLING ◽  
Lianhai Zu ◽  
qiang fu ◽  
...  
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Gas Permeability ◽  
Polymeric Materials ◽  
Composite Membranes ◽  
Gas Diffusion ◽  
Separation Performance ◽  
Film Composite ◽  
Thin Film Composite ◽  
Tfc Membrane

Thin film composite (TFC) membranes have attracted increasing interest to meet the demands of industrial gas separation. However, the development of high performance TFC membranes within their current configuration faces two key challenges: (i) the thickness-dependent gas permeability of polymeric materials (mainly polydimethylsiloxane (PDMS)) and (ii) the geometric restriction effect due to the limited pore accessibility of porous substrates. Here we demonstrate for the first time that the incorporation of trace (~1.8 wt%) amounts of amorphous metal-organic framework (aMOF) nanosheets into the gutter layer of TFC assemblies can simultaneously address these two limitations, with experimental evidence revealing the creation of rapid gas diffusion pathways along horizontal direction. Leveraging this strategy, we successfully fabricated a novel TFC membrane, consisting of a PDMS/aMOF gutter and an ultrathin (~54 nm) poly(ethylene glycol) top selective layer<i> via</i> surface-initiated atom transfer radical polymerization (ATRP). The complete TFC membrane exhibits excellent processability and the highest CO<sub>2</sub> permeance (1,990 GPU with a CO<sub>2</sub>/N<sub>2</sub> ideal selectivity of 39) yet observed for a TFC membrane employing a PDMS gutter layer. This study reveals an avenue for the design and fabrication of a new TFC membrane system with unprecedented gas separation performance.

Synthesis of novel Co(ii) complexed bipyrimidine polyimide and preparation of thin film composite membranes

2020 ◽  
Vol 11 (31) ◽  
pp. 5057-5066
Author(s):  
Jianrui Zhang ◽  
Xiaocui Han ◽  
Cheng Yue ◽  
Di Liu ◽  
Ziyu Lin ◽  
...  
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Systematic Study ◽  
Composite Membranes ◽  
Selective Layer ◽  
Film Composite ◽  
Thin Film Composite

A systematic study was carried out on the effect of the polyimide complexed with Co2+ as the selective layer of thin film composite membranes on gas separation.

Gas separation and water desalination performance of defect-free interfacially polymerized para-linked polyamide thin-film composite membranes

2021 ◽  
Vol 618 ◽  
pp. 118572
Author(s):  
Zain Ali ◽  
Yingge Wang ◽  
Wojciech Ogieglo ◽  
Federico Pacheco ◽  
Hakkim Vovusha ◽  
...  
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Composite Membranes ◽  
Water Desalination ◽  
Film Composite ◽  
Thin Film Composite

scholarly journals Ultrapermeable Thin Film Composite Membranes Enhanced via Doping MOF Nanosheets

2020 ◽  
Author(s):  
Min Liu ◽  
Ke Xie ◽  
MITCHELL NOTHLING ◽  
Lianhai Zu ◽  
qiang fu ◽  
...  
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Gas Permeability ◽  
Polymeric Materials ◽  
Composite Membranes ◽  
Gas Diffusion ◽  
Separation Performance ◽  
Film Composite ◽  
Thin Film Composite ◽  
Tfc Membrane

Thin film composite (TFC) membranes have attracted increasing interest to meet the demands of industrial gas separation. However, the development of high performance TFC membranes within their current configuration faces two key challenges: (i) the thickness-dependent gas permeability of polymeric materials (mainly polydimethylsiloxane (PDMS)) and (ii) the geometric restriction effect due to the limited pore accessibility of porous substrates. Here we demonstrate for the first time that the incorporation of trace (~1.8 wt%) amounts of amorphous metal-organic framework (aMOF) nanosheets into the gutter layer of TFC assemblies can simultaneously address these two limitations, with experimental evidence revealing the creation of rapid gas diffusion pathways along horizontal direction. Leveraging this strategy, we successfully fabricated a novel TFC membrane, consisting of a PDMS/aMOF gutter and an ultrathin (~54 nm) poly(ethylene glycol) top selective layer<i> via</i> surface-initiated atom transfer radical polymerization (ATRP). The complete TFC membrane exhibits excellent processability and the highest CO<sub>2</sub> permeance (1,990 GPU with a CO<sub>2</sub>/N<sub>2</sub> ideal selectivity of 39) yet observed for a TFC membrane employing a PDMS gutter layer. This study reveals an avenue for the design and fabrication of a new TFC membrane system with unprecedented gas separation performance.

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