Gas transport behavior of mixed-matrix membranes composed of silica nanoparticles in a polymer of intrinsic microporosity (PIM-1)

Juhyeon Ahn, Wookjin Chung, Ingo Pinnau, Jingshe Song, Naiying Du, Gilles P. Robertson, Michael D. Guiver

Research output: Contribution to journalArticlepeer-review

199 Scopus citations

Abstract

Recently, high-free volume, glassy ladder-type polymers, referred to as polymers of intrinsic microporosity (PIM), have been developed and their reported gas transport performance exceeded the Robeson upper bound trade-off for O2/N2 and CO2/CH4. The present work reports the gas transport behavior of PIM-1/silica nanocomposite membranes. The changes in free volume, as well as the presence and volume of the void cavities, were investigated by analyzing the density, thermal stability, and nano-structural morphology. The enhancement in gas permeability (e.g., He, H2, O2, N2, and CO2) with increasing filler content shows that the trend is related to the true silica volume and void volume fraction. Crown Copyright © 2009.
Original languageEnglish (US)
Pages (from-to)280-287
Number of pages8
JournalJournal of Membrane Science
Volume346
Issue number2
DOIs
StatePublished - Jan 2010

ASJC Scopus subject areas

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

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