Enhanced gas separation factors of microporous polymer constrained in the channels of anodic alumina membranes

Ekaterina  Chernova; Dmitrii  Petukhov; Olga  Boytsova; Alexander  Alentiev; Peter Budd; Yuri  Yampolskii; Andrei  Eliseev

doi:10.1038/srep31183

Enhanced gas separation factors of microporous polymer constrained in the channels of anodic alumina membranes

Ekaterina Chernova, Dmitrii Petukhov , Olga Boytsova, Alexander Alentiev , Peter Budd, Yuri Yampolskii , Andrei Eliseev

Research output: Contribution to journal › Article › peer-review

Abstract

New composite membranes based on porous anodic alumina films and polymer of intrinsic microporosity (PIM-1) have been prepared using a spin-coating technique. According to scanning electron microscopy, partial penetration of polymer into the pores of alumina supports takes place giving rise to selective polymeric layers with fiber-like microstructure. Geometric confinement of rigid PIM-1 in the channels of anodic alumina causes reduction of small-scale mobility in polymeric chains. As a result, transport of permanent gases, such as CH4, becomes significantly hindered across composite membranes. Contrary, the transport of condensable gases (CO2, С4H10), did not significantly suffer from the confinement due to high solubility in the polymer matrix. This strategy enables enhancement of selectivity towards CO2 and C4H10 without significant loss of the membrane performance and seems to be prospective for drain and sweetening of natural gas.

Original language	English
Journal	Scientific Reports
Volume	6
Early online date	8 Aug 2016
DOIs	https://doi.org/10.1038/srep31183
Publication status	Published - 2016

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title = "Enhanced gas separation factors of microporous polymer constrained in the channels of anodic alumina membranes",

abstract = "New composite membranes based on porous anodic alumina films and polymer of intrinsic microporosity (PIM-1) have been prepared using a spin-coating technique. According to scanning electron microscopy, partial penetration of polymer into the pores of alumina supports takes place giving rise to selective polymeric layers with fiber-like microstructure. Geometric confinement of rigid PIM-1 in the channels of anodic alumina causes reduction of small-scale mobility in polymeric chains. As a result, transport of permanent gases, such as CH4, becomes significantly hindered across composite membranes. Contrary, the transport of condensable gases (CO2, С4H10), did not significantly suffer from the confinement due to high solubility in the polymer matrix. This strategy enables enhancement of selectivity towards CO2 and C4H10 without significant loss of the membrane performance and seems to be prospective for drain and sweetening of natural gas.",

author = "Ekaterina Chernova and Dmitrii Petukhov and Olga Boytsova and Alexander Alentiev and Peter Budd and Yuri Yampolskii and Andrei Eliseev",

year = "2016",

doi = "10.1038/srep31183",

language = "English",

volume = "6",

journal = "Scientific Reports",

issn = "2045-2322",

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TY - JOUR

T1 - Enhanced gas separation factors of microporous polymer constrained in the channels of anodic alumina membranes

AU - Chernova, Ekaterina

AU - Petukhov , Dmitrii

AU - Boytsova, Olga

AU - Alentiev , Alexander

AU - Budd, Peter

AU - Yampolskii , Yuri

AU - Eliseev , Andrei

PY - 2016

Y1 - 2016

N2 - New composite membranes based on porous anodic alumina films and polymer of intrinsic microporosity (PIM-1) have been prepared using a spin-coating technique. According to scanning electron microscopy, partial penetration of polymer into the pores of alumina supports takes place giving rise to selective polymeric layers with fiber-like microstructure. Geometric confinement of rigid PIM-1 in the channels of anodic alumina causes reduction of small-scale mobility in polymeric chains. As a result, transport of permanent gases, such as CH4, becomes significantly hindered across composite membranes. Contrary, the transport of condensable gases (CO2, С4H10), did not significantly suffer from the confinement due to high solubility in the polymer matrix. This strategy enables enhancement of selectivity towards CO2 and C4H10 without significant loss of the membrane performance and seems to be prospective for drain and sweetening of natural gas.

AB - New composite membranes based on porous anodic alumina films and polymer of intrinsic microporosity (PIM-1) have been prepared using a spin-coating technique. According to scanning electron microscopy, partial penetration of polymer into the pores of alumina supports takes place giving rise to selective polymeric layers with fiber-like microstructure. Geometric confinement of rigid PIM-1 in the channels of anodic alumina causes reduction of small-scale mobility in polymeric chains. As a result, transport of permanent gases, such as CH4, becomes significantly hindered across composite membranes. Contrary, the transport of condensable gases (CO2, С4H10), did not significantly suffer from the confinement due to high solubility in the polymer matrix. This strategy enables enhancement of selectivity towards CO2 and C4H10 without significant loss of the membrane performance and seems to be prospective for drain and sweetening of natural gas.

U2 - 10.1038/srep31183

DO - 10.1038/srep31183

M3 - Article

SN - 2045-2322

VL - 6

JO - Scientific Reports

JF - Scientific Reports

ER -

Enhanced gas separation factors of microporous polymer constrained in the channels of anodic alumina membranes

Abstract

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