Thermal crosslinking of a novel membrane derived from phenolphthalein-based cardo poly(arylene ether ketone) to enhance CO2/CH4 separation performance and plasticization resistance

Xu, Ruisong; Li, Lin; Jin, Xin; Hou, Mengjie; Liu, He; Lu, Yunhua; Song, Chengwen; Wang, Tonghua

doi:10.1016/j.memsci.2019.05.084

Cited by 46 publications

(32 citation statements)

References 52 publications

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“…Many thermal decomposition reactions might take place during this stage. According to our previous reports [33] , the weight loss before 500 °C was mainly attributed to the thermal decomposition of the pendant cardo groups accompanying with releasing CO 2 ( Fig. 2 (b)), which resulted in the formation of the biphenyl cross-linkages between molecular chains and enlargement of interchain distance.…”

Section: = P S (4)supporting

confidence: 57%

“…The fresh membranes obtained were then heated in a vacuum oven at 100 °C and 150 °C for 24 h to remove the residual solvent. The detailed preparation process can be found in our previous work [33] . The resulting PEK-C polymeric membranes (65-75 μm) were cut into 1.5 × 1.5 cm 2 pieces and used to prepare CMS membranes.…”

Section: Preparation Of Cms Membranesmentioning

confidence: 99%

“…Before carbonization, the PEK-C polymeric precursors need to undergo an oxidative pretreatment to prevent the membranes from melting during thermal treatment [33] . The pretreatment was carried out in a muffle furnace under a 200 mL/min of air flow.…”

Section: Preparation Of Cms Membranesmentioning

confidence: 99%

“…All these features make PEK-C polymer suitable membrane material for gas separation. In our previous work, PEK-C polymer was selected to prepare thermal crosslinking membranes at the heat treatment temperature of 400-475 °C, and showed an attractive prospect in gas separation membrane materials [33] . In the present study, the PEK-C polymer was used for the first time to prepare ultraselective CMS membranes for hydrogen purification.…”

Section: Introductionmentioning

confidence: 99%

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Ultraselective carbon molecular sieve membrane for hydrogen purification

Liu

et al. 2020

Journal of Energy Chemistry

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Section: = P S (4)supporting

confidence: 57%

Section: Preparation Of Cms Membranesmentioning

confidence: 99%

Section: Preparation Of Cms Membranesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ultraselective carbon molecular sieve membrane for hydrogen purification

Liu

et al. 2020

Journal of Energy Chemistry

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“…This result is consistent with some literature reports. [50][51][52] This can be rationalized by a decrease in gas solubility coefficient with pressure as is typically observed in glassy polymers due to their dual-mode sorption behavior.…”

Section: Gas Permeability and Selectivitymentioning

confidence: 94%

Synthesis and gas permeation properties of thermally rearranged poly(ether-benzoxazole)s with low rearrangement temperatures

Zhang

Xiao

et al. 2020

RSC Adv.

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Unraveling the relationship between microstructure of CMS membrane and gas transport property using molecular simulation

Hou,

Li,

et al. 2024

AIChE Journal

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Carbon molecular sieve (CMS) membranes are attractive for energy‐efficient gas separations. A challenge with the fabrication of a high‐performance CMS membrane is fine‐tuning its microstructure for precise and efficient separation. This necessitates a molecular‐scale analysis to understand its microstructure–performance relationship. Herein, molecular simulations were performed to unravel the relationships between four similar‐sized CMS matrices with different microstructural characteristics (e.g., chemical composition and micromorphology) and their gas transport properties. Results show that the disordered packing of carbon layers, leading to the formation of ultramicropore (2–7 Å), originates from stereoscopic sp3 hybridized carbon atoms rather than non‐carbon (oxygen) atoms. The size‐sieving ability of CMS depends positively on ultramicroporosity; the adsorption capacity is strengthened and then weakened with the increase of ultramicroporosity. Competitive effects are observed in binary‐mixture transport, and it is expected that the separation performance can be optimized by a reasonable distribution of ultramicropores combined with the affinity of oxygen‐containing species.

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Thermal crosslinking of a novel membrane derived from phenolphthalein-based cardo poly(arylene ether ketone) to enhance CO2/CH4 separation performance and plasticization resistance

Cited by 46 publications

References 52 publications

Ultraselective carbon molecular sieve membrane for hydrogen purification

Ultraselective carbon molecular sieve membrane for hydrogen purification

Synthesis and gas permeation properties of thermally rearranged poly(ether-benzoxazole)s with low rearrangement temperatures

Unraveling the relationship between microstructure of CMS membrane and gas transport property using molecular simulation

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