Orientation of an Amphiphilic Copolymer to a Lamellar Structure on a Hydrophobic Surface and Implications for CO 2 Capture Membranes

Cheol Hun Park, Jae Hun Lee, Jung Pyo Jung, Wooseop Lee, Du Yeol Ryu, Jong Hak Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The structural orientation of an amphiphilic crystalline polymer to a highly ordered microphase-separated lamellar structure on a hydrophobic surface is presented. It is formed by the surface graft polymerization of poly(ethylene glycol)behenyl ether methacrylate onto poly(trimethylsilyl) propyne in the presence of allylamine. In particular, allylamine plays a pivotal role in controlling the crystalline phase, configuration, and permeation properties. The resulting materials are effectively used to improve the CO 2 capture property of membranes. Upon the optimization of the reaction conditions, a high CO 2 permeability of 501 Barrer and a CO 2 /N 2 ideal selectivity of 77.2 are obtained, which exceed the Robeson upper bound limit. It is inspiring to surpass the upper bound limit via a simple surface modification method.

Original languageEnglish
Pages (from-to)1143-1147
Number of pages5
JournalAngewandte Chemie - International Edition
Volume58
Issue number4
DOIs
Publication statusPublished - 2019 Jan 21

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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