High-performance Polymer Membranes with Multi-functional Amphiphilic Micelles for CO2 Capture

Sang Jin Kim, Harim Jeon, Dong Jun Kim, Jong Hak Kim

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Herein, we report a high performance polymer membrane with simultaneously large improvements in the CO2 permeability and CO2/N2 selectivity. These improvements are obtained by incorporation of a multi-functional amphiphilic comb copolymer micelle, that is, poly(dimethylsiloxane)-g-poly(oxyethylene methacrylate) (PDMS-g-POEM), into a poly(amide-b-ethylene oxide) (Pebax) matrix. Both CO2 and N2 permeabilities continuously increased with PDMS-g-POEM content, whereas the CO2/N2 selectivity increased up to 40 wt % of PDMS-g-POEM, which enabled the maximum performance to approach the upper bound limit (2008). The membranes with PDMS-g-POEM exhibited greater CO2 permeability and CO2/N2 selectivity than those with a zeolitic imidazolate framework (ZIF-8), a well-known expensive inorganic filler, indicating the effectiveness of PDMS-g-POEM micelles for CO2 capture.

Original languageEnglish
Pages (from-to)3783-3792
Number of pages10
JournalChemSusChem
Volume8
Issue number22
DOIs
Publication statusPublished - 2015 Nov 23

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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