Ionic group-mediated crosslinked polyimide membranes for enhanced CO2 separation

RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 69907-69914 ◽  
Author(s):  
Irshad Kammakakam ◽  
SangYong Nam ◽  
Tae-Hyun Kim
Keyword(s):  
Co2 Separation ◽  
Ionic Group ◽  
Ionic Groups ◽  
Polyimide Membranes

The dual cation-forming DABCO- or bisimidazolium-based ionic groups were introduced as crosslinkage sites and CO2-solubilizing groups into 6FDA–durene polyimide.

Bisimidazolium PEG-mediated crosslinked 6FDA-durene polyimide membranes for CO2 separation

2019 ◽  
Vol 224 ◽  
pp. 180-188 ◽  
Author(s):  
Iqubal Hossain ◽  
Abu Zafar Al Munsur ◽  
Ook Choi ◽  
Tae-Hyun Kim
Keyword(s):  
Co2 Separation ◽  
Polyimide Membranes

Ionic polyimide membranes containing Tröger's base: Synthesis, microstructure and potential application in CO2 separation

2020 ◽  
Vol 602 ◽  
pp. 117967 ◽  
Author(s):  
Xiaochen Xu ◽  
Jingjing Wang ◽  
Jie Dong ◽  
Hai-Bei Li ◽  
Qinghua Zhang ◽  
...  
Keyword(s):  
Potential Application ◽  
Co2 Separation ◽  
Troger's Base ◽  
Polyimide Membranes

Novel piperazinium-mediated crosslinked polyimide membranes for high performance CO2 separation

2015 ◽  
Vol 487 ◽  
pp. 90-98 ◽  
Author(s):  
Irshad Kammakakam ◽  
Hee Wook Yoon ◽  
SangYong Nam ◽  
Ho Bum Park ◽  
Tae-Hyun Kim
Keyword(s):  
High Performance ◽  
Co2 Separation ◽  
Polyimide Membranes

Mixed Mode Chromatography: A Novel Way Toward New Selectivity

2018 ◽  
Vol 20 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Xavier Santarelli ◽  
Charlotte Cabanne
Keyword(s):  
Salt Tolerance ◽  
Affinity Chromatography ◽  
Mixed Mode ◽  
Ionic Groups ◽  
Crude Extracts ◽  
The Way

Mixed mode chromatography offers a diversity of ligands, each providing a new selectivity. This allows the design of novel purification processes with reduced column steps. Structure of ligands is based on both hydrophobic and ionic groups. Thanks to its salt tolerance, crude extracts or post-IEX samples can be loaded directly without conditioning. The selectivity could be enhanced by modulating elution parameters or by using additives. More importantly, mixed mode chromatography could be as effective as affinity chromatography for mAb purification processes. Mixed mode chromatography opens the way to short and economical processes.

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