High-Performance Self-Cross-Linked PGP-POEM Comb Copolymer Membranes for CO2 Capture

Na Un Kim, Byeong Ju Park, Yeji Choi, Ki Bong Lee, Jong Hak Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We report a high performance CO2 capture membrane based on the copolymerization and self-cross-linking of poly(glycidyl methacrylate-g-poly(propylene glycol))-co-poly(oxyethylene methacrylate) (PGP-POEM) comb copolymer. The epoxide-amine reaction is responsible for the self-cross-linking reaction, which takes place under mild conditions without any additional cross-linkers or catalysts. The effects of self-cross-linking on the membrane properties are investigated by comparing the copolymers with those containing a low PPG grafting density (l-PGP-POEM). Furthermore, the gas separation performance of the membranes is systematically investigated as a function of POEM content in the comb copolymer. Both the permeance and selectivity of the PGP-POEM membranes are enhanced simultaneously with increase in the POEM content up to 51.2 wt % (PGP-POEM13), at which the best performance was achieved among the membranes. The high performance results from the reduced diffusion of N2 due to the self-cross-linked structure as well as the increased CO2 solubility due to the high content of ether oxygen groups in the comb copolymer. By optimizing the membrane thickness, the performance is further improved up to a CO2 permeance of 500 GPU (1 GPU = 10-6 cm3 (STP)/(s cm2 cmHg)) and CO2/N2 selectivity of 22.4, which is close to the commercialization target area of CO2 capture membranes. This work suggests a simple and economical cross-linking method to fabricate the membranes with excellent gas separation performance.

Original languageEnglish
Pages (from-to)8938-8947
Number of pages10
JournalMacromolecules
Volume50
Issue number22
DOIs
Publication statusPublished - 2017 Nov 28

Fingerprint

Copolymers
Membranes
Gases
Propylene Glycol
Methacrylates
Epoxy Compounds
Glycols
Ether
Copolymerization
Amines
Polypropylenes
Ethers
Solubility
Oxygen
Catalysts

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

High-Performance Self-Cross-Linked PGP-POEM Comb Copolymer Membranes for CO2 Capture. / Kim, Na Un; Park, Byeong Ju; Choi, Yeji; Lee, Ki Bong; Kim, Jong Hak.

In: Macromolecules, Vol. 50, No. 22, 28.11.2017, p. 8938-8947.

Research output: Contribution to journalArticle

Kim, Na Un ; Park, Byeong Ju ; Choi, Yeji ; Lee, Ki Bong ; Kim, Jong Hak. / High-Performance Self-Cross-Linked PGP-POEM Comb Copolymer Membranes for CO2 Capture. In: Macromolecules. 2017 ; Vol. 50, No. 22. pp. 8938-8947.
@article{066aacc1661b41c3886e0d3ab9da55f6,
title = "High-Performance Self-Cross-Linked PGP-POEM Comb Copolymer Membranes for CO2 Capture",
abstract = "We report a high performance CO2 capture membrane based on the copolymerization and self-cross-linking of poly(glycidyl methacrylate-g-poly(propylene glycol))-co-poly(oxyethylene methacrylate) (PGP-POEM) comb copolymer. The epoxide-amine reaction is responsible for the self-cross-linking reaction, which takes place under mild conditions without any additional cross-linkers or catalysts. The effects of self-cross-linking on the membrane properties are investigated by comparing the copolymers with those containing a low PPG grafting density (l-PGP-POEM). Furthermore, the gas separation performance of the membranes is systematically investigated as a function of POEM content in the comb copolymer. Both the permeance and selectivity of the PGP-POEM membranes are enhanced simultaneously with increase in the POEM content up to 51.2 wt {\%} (PGP-POEM13), at which the best performance was achieved among the membranes. The high performance results from the reduced diffusion of N2 due to the self-cross-linked structure as well as the increased CO2 solubility due to the high content of ether oxygen groups in the comb copolymer. By optimizing the membrane thickness, the performance is further improved up to a CO2 permeance of 500 GPU (1 GPU = 10-6 cm3 (STP)/(s cm2 cmHg)) and CO2/N2 selectivity of 22.4, which is close to the commercialization target area of CO2 capture membranes. This work suggests a simple and economical cross-linking method to fabricate the membranes with excellent gas separation performance.",
author = "Kim, {Na Un} and Park, {Byeong Ju} and Yeji Choi and Lee, {Ki Bong} and Kim, {Jong Hak}",
year = "2017",
month = "11",
day = "28",
doi = "10.1021/acs.macromol.7b02024",
language = "English",
volume = "50",
pages = "8938--8947",
journal = "Macromolecules",
issn = "0024-9297",
publisher = "American Chemical Society",
number = "22",

}

TY - JOUR

T1 - High-Performance Self-Cross-Linked PGP-POEM Comb Copolymer Membranes for CO2 Capture

AU - Kim, Na Un

AU - Park, Byeong Ju

AU - Choi, Yeji

AU - Lee, Ki Bong

AU - Kim, Jong Hak

PY - 2017/11/28

Y1 - 2017/11/28

N2 - We report a high performance CO2 capture membrane based on the copolymerization and self-cross-linking of poly(glycidyl methacrylate-g-poly(propylene glycol))-co-poly(oxyethylene methacrylate) (PGP-POEM) comb copolymer. The epoxide-amine reaction is responsible for the self-cross-linking reaction, which takes place under mild conditions without any additional cross-linkers or catalysts. The effects of self-cross-linking on the membrane properties are investigated by comparing the copolymers with those containing a low PPG grafting density (l-PGP-POEM). Furthermore, the gas separation performance of the membranes is systematically investigated as a function of POEM content in the comb copolymer. Both the permeance and selectivity of the PGP-POEM membranes are enhanced simultaneously with increase in the POEM content up to 51.2 wt % (PGP-POEM13), at which the best performance was achieved among the membranes. The high performance results from the reduced diffusion of N2 due to the self-cross-linked structure as well as the increased CO2 solubility due to the high content of ether oxygen groups in the comb copolymer. By optimizing the membrane thickness, the performance is further improved up to a CO2 permeance of 500 GPU (1 GPU = 10-6 cm3 (STP)/(s cm2 cmHg)) and CO2/N2 selectivity of 22.4, which is close to the commercialization target area of CO2 capture membranes. This work suggests a simple and economical cross-linking method to fabricate the membranes with excellent gas separation performance.

AB - We report a high performance CO2 capture membrane based on the copolymerization and self-cross-linking of poly(glycidyl methacrylate-g-poly(propylene glycol))-co-poly(oxyethylene methacrylate) (PGP-POEM) comb copolymer. The epoxide-amine reaction is responsible for the self-cross-linking reaction, which takes place under mild conditions without any additional cross-linkers or catalysts. The effects of self-cross-linking on the membrane properties are investigated by comparing the copolymers with those containing a low PPG grafting density (l-PGP-POEM). Furthermore, the gas separation performance of the membranes is systematically investigated as a function of POEM content in the comb copolymer. Both the permeance and selectivity of the PGP-POEM membranes are enhanced simultaneously with increase in the POEM content up to 51.2 wt % (PGP-POEM13), at which the best performance was achieved among the membranes. The high performance results from the reduced diffusion of N2 due to the self-cross-linked structure as well as the increased CO2 solubility due to the high content of ether oxygen groups in the comb copolymer. By optimizing the membrane thickness, the performance is further improved up to a CO2 permeance of 500 GPU (1 GPU = 10-6 cm3 (STP)/(s cm2 cmHg)) and CO2/N2 selectivity of 22.4, which is close to the commercialization target area of CO2 capture membranes. This work suggests a simple and economical cross-linking method to fabricate the membranes with excellent gas separation performance.

UR - http://www.scopus.com/inward/record.url?scp=85035347062&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85035347062&partnerID=8YFLogxK

U2 - 10.1021/acs.macromol.7b02024

DO - 10.1021/acs.macromol.7b02024

M3 - Article

VL - 50

SP - 8938

EP - 8947

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 22

ER -