Blend membranes of ionic liquid and polymers of intrinsic microporosity with improved gas separation characteristics

Halder, Karabi; Khan, Muntazim Munir; Grünauer, Judith; Shishatskiy, Sergey; Abetz, Clarissa; Filiz, Volkan; Abetz, Volker

doi:10.1016/j.memsci.2017.06.022

Cited by 59 publications

(35 citation statements)

References 57 publications

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“…Therefore, ILs can be potentially used to produce regular micropatterns, when they are mixed with polymers, where phase separation occurs. For instance, Halder et al . have developed blend membranes based on ILs ([C x mim][Tf2N]) and PIM‐1.…”

Section: Introductionmentioning

confidence: 99%

Ionic liquid mediated surface micropatterning of polymer blends

Lasseuguette

McClements

Koutsos

et al. 2017

J of Applied Polymer Sci

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A polymer of intrinsic porosity (i.e., PIM-1) has been blended with different ionic liquids (ILs) in order to evaluate the effect of the ILs on the microstructure of the polymer blend. [C 8 MIM][Cl], [BMIM][DCa], [BMPyr][DCa], and [BMIM][Tf 2 N] have been selected and were mixed with PIM-1. Polymer blends containing up to 80 wt % of ILs were prepared by a casting method with chloroform as solvent. SEM images show that during the film formation a structuring of the surface appears depending on the nature and the concentration of ILs, with appearance of well-defined microstructure in the case of [BMIM][Tf 2 N] and [BMIM][DCa]. In the case of [BMIM][Tf 2 N]/PIM-1 film, the lower IL concentration induces the denser film with small micropatterns onto the surface. AFM analysis indicates that the ILs are well dispersed on the surface. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and water contact angle measurements show that a gradient of IL concentration is observed across the film thickness. It is demonstrated that ILs are versatile co-solvents for inducing controlled micropatterns in polymer membrane surfaces.

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Section: Introductionmentioning

confidence: 99%

Ionic liquid mediated surface micropatterning of polymer blends

Lasseuguette

McClements

Koutsos

et al. 2017

J of Applied Polymer Sci

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“…Poly(ethylene) glycol and Matrimid® 5218 in different concentrations to PIM‐1 have been reported, which increased the diffusion, solubility, and selectivity of the glassy polymer PIM‐1. The blending of IL [C 6 mim][Tf 2 N] with PIM‐1 also resulted in an increase in selectivity for CO 2 /N 2 from 19 to 30 . Rehman et al stated an improvement in selectivity of up to 53 in ethanolamine‐based IL membranes.…”

Section: Applications Of Ils In Gas Separation Membranesmentioning

confidence: 99%

“…The physical blending of a polymer with attractive solids or liquid compounds provides a desired shift of properties for better gas separation performance [89]. The blend is classified into three types, i.e., miscible, immiscible, and partially miscible blends.…”

Section: Ilpmsmentioning

confidence: 99%

Recent Developments and Applications of Ionic Liquids in Gas Separation Membranes

et al. 2019

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Flue gas emissions and the harmful effects of these gases urge to separate and capture these unwanted gases. Ionic liquids due to negligible vapor pressure, thermal stability, and wide electrochemical stability have expanded its application in gas separations. A comprehensive overview of the recent developments and applications of ionic liquid membranes (ILMs) for gas separation is given. The three general classifications of ILMs, such as supported ionic liquid membranes (SILMs), ionic liquid polymeric membranes (ILPMs), and ionic liquid mixed‐matrix membranes (ILMMMs) along with their applications, for the separation of various mixed gases systems is discussed in detail. Furthermore, issues, challenges, computational study, and future perspectives for ILMs are also considered.

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“…These membranes displayed an improved CO 2 permeances and partly enhanced the selectivity as compared to the pristine PSf membrane. Halder et al . blended polymers of intrinsic microporosity with the ILs [C 6 mim][Tf 2 N] to form membranes.…”

Section: Co2 Capture and Separation By Ionic Liquids‐based Membranesmentioning

confidence: 99%

“…[38] These membranes displayed an improved CO 2 permeances and partly enhanced the selectivity as compared to the pristine PSf membrane. Halder et al [39] blended polymers of intrinsic microporosity with the ILs [C 6 mim][Tf 2 N] to form membranes. The blend membrane showed an improved CO 2 /N 2 selectivity (ranging from 19 to 30) and high CO 2 permeability coe cient (above 800 barrer) at 30°C.…”

Section: Ionic Liquid Based Composite Membranes (Ilcms)mentioning

confidence: 99%

Ionic Liquids‐Based Membranes for Carbon Dioxide Separation

Xiong

Deming

Javaid

et al. 2019

Israel Journal of Chemistry

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Ionic liquids (ILs) have gained wide‐spread focus owing to its negligible vapor pressure, low heat capacity, high thermal stability, and structural diversity. The solubility and selectivity toward carbon dioxide has made ILs a unique platform that possess the potential in gas separations. In particularly, combining functional ILs with membranes and porous supports is an efficient way to design task‐specific materials for CO2 separations. This minireview summarizes the developments and advances of ionic liquids‐based membranes for CO2 separations in recent three years, with an emphasis on the strategy of incorporating ionic liquids and CO2 separation performance.

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Blend membranes of ionic liquid and polymers of intrinsic microporosity with improved gas separation characteristics

Cited by 59 publications

References 57 publications

Ionic liquid mediated surface micropatterning of polymer blends

Ionic liquid mediated surface micropatterning of polymer blends

Recent Developments and Applications of Ionic Liquids in Gas Separation Membranes

Ionic Liquids‐Based Membranes for Carbon Dioxide Separation

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