A highly selective PEGBEM-g-POEM comb copolymer membrane for CO2/N2 separation

Cheol Hun Park; Jae Hun Lee; Jung Pyo Jung; Bumsuk Jung; Jong Hak Kim

doi:10.1016/j.memsci.2015.06.023

A highly selective PEGBEM-g-POEM comb copolymer membrane for CO₂/N₂ separation

Cheol Hun Park, Jae Hun Lee, Jung Pyo Jung, Bumsuk Jung, Jong Hak Kim

Department of Chemical and Biomolecular Engineering

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

41 Citations (Scopus)

Abstract

A series of amphiphilic comb copolymers composed of poly(ethylene glycol) behenyl ether methacrylate (PEGBEM) and poly(oxyethylene methacrylate) (POEM) were synthesized via an economical and facile free radical polymerization. The synthesis of comb copolymers was confirmed by gel permeation chromatography (GPC), thermogravimetric analysis (TGA), nuclear magnetic resonance (¹H NMR) and Fourier transform infrared spectroscopy (FT-IR) spectroscopy. The microphase-separated morphology and crystalline structure of the comb copolymers were controllable by the copolymer composition, as characterized using wide-angle x-ray scattering (WAXS), differential scanning calorimetry (DSC), small-angle x-ray scattering (SAXS) and atomic force microscope (AFM). Due to good solubility in ethanol, the PEGBEM-g-POEM comb copolymers could be directly coated onto a microporous polysulfone support to prepare composite membranes. The maximum CO₂/N₂ selectivity of the PEGBEM-g-POEM membrane reached 84.7, which is much higher than that of commercially available Pebax (17.0) and is one of the highest values reported for a polymer membrane under no humidified condition. The CO₂ permeance through the PEGBEM-g-POEM membrane (21.9 GPU, 1 GPU=10^-6cm³(STP)/(scm²cmHg)) was also slightly higher than that through Pebax membrane (20.5 GPU) at similar membrane thickness. •A highly CO₂-philic, alcohol-soluble PEGBEM-g-POEM comb copolymer was synthesized.•Crystalline structure of PEGBEM-g-POEM was controllable by copolymer composition.•The maximum CO₂/N₂ selectivity of the PEGBEM-g-POEM membrane reached 84.7.•This selectivity is much higher than commercially available Pebax membrane (17.0).

Original language	English
Pages (from-to)	452-460
Number of pages	9
Journal	Journal of Membrane Science
Volume	492
DOIs	https://doi.org/10.1016/j.memsci.2015.06.023
Publication status	Published - 2015 Oct 5

Bibliographical note

Funding Information:
We acknowledge financial support from the Korea CCS R&D Center (2013M1A8A1035871),the Human Resources Program in Energy Technology (20154010200810) and the Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) ( 20122010100040 ).

Publisher Copyright:
© 2015 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Biochemistry
Materials Science(all)
Physical and Theoretical Chemistry
Filtration and Separation

Access to Document

10.1016/j.memsci.2015.06.023

Cite this

@article{db26f8a136924091b7fd0c5b92d763ea,

title = "A highly selective PEGBEM-g-POEM comb copolymer membrane for CO2/N2 separation",

abstract = "A series of amphiphilic comb copolymers composed of poly(ethylene glycol) behenyl ether methacrylate (PEGBEM) and poly(oxyethylene methacrylate) (POEM) were synthesized via an economical and facile free radical polymerization. The synthesis of comb copolymers was confirmed by gel permeation chromatography (GPC), thermogravimetric analysis (TGA), nuclear magnetic resonance (1H NMR) and Fourier transform infrared spectroscopy (FT-IR) spectroscopy. The microphase-separated morphology and crystalline structure of the comb copolymers were controllable by the copolymer composition, as characterized using wide-angle x-ray scattering (WAXS), differential scanning calorimetry (DSC), small-angle x-ray scattering (SAXS) and atomic force microscope (AFM). Due to good solubility in ethanol, the PEGBEM-g-POEM comb copolymers could be directly coated onto a microporous polysulfone support to prepare composite membranes. The maximum CO2/N2 selectivity of the PEGBEM-g-POEM membrane reached 84.7, which is much higher than that of commercially available Pebax (17.0) and is one of the highest values reported for a polymer membrane under no humidified condition. The CO2 permeance through the PEGBEM-g-POEM membrane (21.9 GPU, 1 GPU=10-6cm3(STP)/(scm2cmHg)) was also slightly higher than that through Pebax membrane (20.5 GPU) at similar membrane thickness. •A highly CO2-philic, alcohol-soluble PEGBEM-g-POEM comb copolymer was synthesized.•Crystalline structure of PEGBEM-g-POEM was controllable by copolymer composition.•The maximum CO2/N2 selectivity of the PEGBEM-g-POEM membrane reached 84.7.•This selectivity is much higher than commercially available Pebax membrane (17.0).",

author = "Park, {Cheol Hun} and Lee, {Jae Hun} and Jung, {Jung Pyo} and Bumsuk Jung and Kim, {Jong Hak}",

note = "Funding Information: We acknowledge financial support from the Korea CCS R&D Center (2013M1A8A1035871),the Human Resources Program in Energy Technology (20154010200810) and the Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) ( 20122010100040 ). Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

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doi = "10.1016/j.memsci.2015.06.023",

language = "English",

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T1 - A highly selective PEGBEM-g-POEM comb copolymer membrane for CO2/N2 separation

AU - Park, Cheol Hun

AU - Lee, Jae Hun

AU - Jung, Jung Pyo

AU - Jung, Bumsuk

AU - Kim, Jong Hak

N1 - Funding Information: We acknowledge financial support from the Korea CCS R&D Center (2013M1A8A1035871),the Human Resources Program in Energy Technology (20154010200810) and the Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) ( 20122010100040 ). Publisher Copyright: © 2015 Elsevier B.V.

PY - 2015/10/5

Y1 - 2015/10/5

N2 - A series of amphiphilic comb copolymers composed of poly(ethylene glycol) behenyl ether methacrylate (PEGBEM) and poly(oxyethylene methacrylate) (POEM) were synthesized via an economical and facile free radical polymerization. The synthesis of comb copolymers was confirmed by gel permeation chromatography (GPC), thermogravimetric analysis (TGA), nuclear magnetic resonance (1H NMR) and Fourier transform infrared spectroscopy (FT-IR) spectroscopy. The microphase-separated morphology and crystalline structure of the comb copolymers were controllable by the copolymer composition, as characterized using wide-angle x-ray scattering (WAXS), differential scanning calorimetry (DSC), small-angle x-ray scattering (SAXS) and atomic force microscope (AFM). Due to good solubility in ethanol, the PEGBEM-g-POEM comb copolymers could be directly coated onto a microporous polysulfone support to prepare composite membranes. The maximum CO2/N2 selectivity of the PEGBEM-g-POEM membrane reached 84.7, which is much higher than that of commercially available Pebax (17.0) and is one of the highest values reported for a polymer membrane under no humidified condition. The CO2 permeance through the PEGBEM-g-POEM membrane (21.9 GPU, 1 GPU=10-6cm3(STP)/(scm2cmHg)) was also slightly higher than that through Pebax membrane (20.5 GPU) at similar membrane thickness. •A highly CO2-philic, alcohol-soluble PEGBEM-g-POEM comb copolymer was synthesized.•Crystalline structure of PEGBEM-g-POEM was controllable by copolymer composition.•The maximum CO2/N2 selectivity of the PEGBEM-g-POEM membrane reached 84.7.•This selectivity is much higher than commercially available Pebax membrane (17.0).

AB - A series of amphiphilic comb copolymers composed of poly(ethylene glycol) behenyl ether methacrylate (PEGBEM) and poly(oxyethylene methacrylate) (POEM) were synthesized via an economical and facile free radical polymerization. The synthesis of comb copolymers was confirmed by gel permeation chromatography (GPC), thermogravimetric analysis (TGA), nuclear magnetic resonance (1H NMR) and Fourier transform infrared spectroscopy (FT-IR) spectroscopy. The microphase-separated morphology and crystalline structure of the comb copolymers were controllable by the copolymer composition, as characterized using wide-angle x-ray scattering (WAXS), differential scanning calorimetry (DSC), small-angle x-ray scattering (SAXS) and atomic force microscope (AFM). Due to good solubility in ethanol, the PEGBEM-g-POEM comb copolymers could be directly coated onto a microporous polysulfone support to prepare composite membranes. The maximum CO2/N2 selectivity of the PEGBEM-g-POEM membrane reached 84.7, which is much higher than that of commercially available Pebax (17.0) and is one of the highest values reported for a polymer membrane under no humidified condition. The CO2 permeance through the PEGBEM-g-POEM membrane (21.9 GPU, 1 GPU=10-6cm3(STP)/(scm2cmHg)) was also slightly higher than that through Pebax membrane (20.5 GPU) at similar membrane thickness. •A highly CO2-philic, alcohol-soluble PEGBEM-g-POEM comb copolymer was synthesized.•Crystalline structure of PEGBEM-g-POEM was controllable by copolymer composition.•The maximum CO2/N2 selectivity of the PEGBEM-g-POEM membrane reached 84.7.•This selectivity is much higher than commercially available Pebax membrane (17.0).

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