High-performance thin PVC-POEM/ZIF-8 mixed matrix membranes on alumina supports for CO2/CH4 separation

Hamin Shin, Won Seok Chi, Sunyoung Bae, Jong Hak Kim, Jinsoo Kim

Research output: Contribution to journalArticle

7 Citations (Scopus)


The development of high-performance membranes is of pivotal importance for practical gas separations. However, it is challenging to prepare defect-free thin membranes. In this study, high-performance composite membranes were prepared based on a thin mixed matrix membrane (MMM) selective layer composed of a poly(vinyl chloride)-poly(oxyethylene methacrylate) (PVC-POEM) graft copolymer and ZIF-8 nanoparticles on a macroporous alumina support, via a spin coating technique. The high CO2 affinity of PVC-POEM with its amphiphilic microphase-separated structure, and the high gas diffusivity of ZIF-8 with its unique porosity and large surface area, enabled the membrane to facilitate gas separation effectively, leading to high permeance and selectivity.

Original languageEnglish
Pages (from-to)127-133
Number of pages7
JournalJournal of Industrial and Engineering Chemistry
Publication statusPublished - 2017 Sep 25

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

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