Polyethyleneimine-functionalized phenolphthalein-based cardo poly(ether ether ketone) membrane for CO2 separation

Yu, Yunwu; Wang, Junhai; Wang, Yan; Pan, Wenhao; Liu, Changwei; Liu, Peng; Liang, Lianjie; Xu, Chen; Liu, Yunxue

doi:10.1016/j.jiec.2019.10.007

Cited by 27 publications

(5 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[38][39][40][41] Together equipped with advantages such as commercial availability and low cost, PEI has been applied to multiple fields, such as delivering small interfering RNAs in human cells, 42 separation of metallic ions, 43 desorbent for anionic organic dyes 44 and absorption of sulfur dioxide. 45 Meanwhile, various modified or composited PEI based membranes have also been prepared and used as the separating membrane in CO 2 capture and separation, 46,47 and as nanofiltration and reverse osmosis membranes in treating wastewater. 48,49 Since there are numbers of amino groups in the PEI repeat unit, PEI doubtlessly has a superior PA doping capability, which inspires us to develop PEI based HT-PEM.…”

mentioning

confidence: 99%

New High Temperature Polymer Electrolyte Membranes Based on Poly(ethylene imine) Crosslinked Poly(ether ketone cardo)

Jin

Liu

Che

et al. 2021

J. Electrochem. Soc.

View full text Add to dashboard Cite

A concept of macromolecular crosslinking is applied to prepare high temperature proton exchange membranes (HT-PEMs). Through a simple lactamization procedure, a series of crosslinked membranes are synthesized based on poly(ethylene imine) (PEI) and poly(ether ketone cardo) (PEKcardo). PEI with abundant amino groups endows crosslinked membranes with superior phosphoric acid (PA) absorption capability, resulting in high conductivities. The rigid PEKcardo matrix and constructed crosslinking network significantly improve the dimensional and mechanical stabilities. As an example, the 92%PEI-PEKcardo with a PA doping content of 304%PA achieves a conductivity of 0.107 S cm−1 at 180 °C without humidifying and a tensile strength of 4.6 MPa at room temperature. The fuel cell performance of abovementioned membrane demonstrates the technical feasibility of the x%PEI-PEKcardo membrane for the HT-PEM fuel cell. This work provides a straightforward method to prepare low-cost and high-performance electrolyte membranes for both fuel cell and other energy devices, such as the vanadium redox flow battery.

show abstract

mentioning

confidence: 99%

New High Temperature Polymer Electrolyte Membranes Based on Poly(ethylene imine) Crosslinked Poly(ether ketone cardo)

Jin

Liu

Che

et al. 2021

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…Polymers with CO 2 -reactive groups such as polyallylamine (Cai et al, 2007 ; Yegani et al, 2007 ; Zhao and Ho, 2012a ; Prasad and Mandal, 2018 ), polyethyleneimine (Matsuyama et al, 1999 ; Xin et al, 2014 ; Yu et al, 2020 ), and poly(vinyl amine) (Qiao et al, 2015 ; Chen and Ho, 2016 ; Chen et al, 2016 ; Tong and Ho, 2017 ) have attracted particular attention as materials for FTMs. In fixed carrier FTMs, the reactive functional groups are anchored to the polymer backbone, which provides better structural integrity compared to FTMs with mobile carriers.…”

Section: Developments Toward the Il-based Ftmsmentioning

confidence: 99%

Facilitated Transport Membranes With Ionic Liquids for CO2 Separations

et al. 2020

View full text Add to dashboard Cite

In recent years, significant development milestones have been reached in the areas of facilitated transport membranes and ionic liquids for CO 2 separations, making the combination of these materials an incredibly promising technology platform for gas treatment processes, such as post-combustion and direct CO 2 capture from air in buildings, submarines, and spacecraft. The developments in facilitated transport membranes involve consistently surpassing the Robeson upper bound for dense polymer membranes, demonstrating a high CO 2 flux across the membrane while maintaining very high selectivity. This mini review focuses on the recent developments of facilitated transport membranes, in particular discussing the challenges and opportunities associated with the incorporation of ionic liquids as fixed and mobile carriers for separations of CO 2 at low partial pressures (<1 atm).

show abstract

“…However, the crosslinking structure always significantly reduces the permeability. 53,54 The hydrogen bond crosslinking structure in blending membrane avoided reducing the permeability excessively while increasing the plasticization resistance.…”

Section: Gas Separation Property and Separation Stabilitymentioning

confidence: 99%

Preparation and performance characterization of novel PVA blended with fluorinated polyimide membrane for gas separation

Lin

Zhao

et al. 2020

High Performance Polymers

Self Cite

View full text Add to dashboard Cite

Fluorinated polyimide and PVA blending membranes were prepared by aqueous solution casting. We chose a poly (amic acid) ammonium salt (PAAS) in aqueous solution based on a novel green strategy as the PI precursor. The blending membranes were characterized by ATR-FTIR, DSC, TGA and gas permeation measurement. The ATR-FTIR analysis revealed that the imidization reaction of 6FPI based on aqueous precursor was completed at 180°C and hydrogen bonds formed between PVA and 6FPI. 6FPI showed good compatibility with PVA segment in blending membranes without obvious separated phase structure. The blending membranes showed high separation properties, for blending with 6FPI the gas separation performance stability was improved due to the hydrogen bonds between hydroxyl groups of PVA and carbonyl groups of 6FPI, and the rigid structure of 6FPI. At high operating pressure 10 bar, the CO2 permeability and CO2/N2 selectivity remained rather high. Using water as the solvent in the PAAS synthesis and membrane preparation is more environmentally friendly and less costly.

show abstract

Polyethyleneimine-functionalized phenolphthalein-based cardo poly(ether ether ketone) membrane for CO2 separation

Cited by 27 publications

References 34 publications

New High Temperature Polymer Electrolyte Membranes Based on Poly(ethylene imine) Crosslinked Poly(ether ketone cardo)

New High Temperature Polymer Electrolyte Membranes Based on Poly(ethylene imine) Crosslinked Poly(ether ketone cardo)

Facilitated Transport Membranes With Ionic Liquids for CO2 Separations

Preparation and performance characterization of novel PVA blended with fluorinated polyimide membrane for gas separation

Contact Info

Product

Resources

About