Olefin-induced dissolution of silver salts physically dispersed in inert polymers and their application to olefin/paraffin separation

Jong Hak Kim, Jongok Won, Yong Soo Kang

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Remarkably high-performance membranes are developed by physically dispersing silver ionic aggregates in inert polymer such as poly(dimethyl siloxane) (PDMS). The mixed gas selectivity for propylene/propane reaches nearly 200, to our knowledge the highest value ever reported for the solid state, whereas other membranes reported up to now show ∼60 of propylene/propane selectivity. Physical dispersion of silver salt in the inert polymers without specific interaction is observed by FT-IR, FT-Raman and wide angle X-ray scattering (WAXS). It is also found that the crystalline silver ionic aggregates are completely dissolved under the propylene environment, representing that propylene is a good ligand for coordination to silver ions. The inert membranes are functional at any loading level and hence a threshold carrier concentration does not exist.

Original languageEnglish
Pages (from-to)403-407
Number of pages5
JournalJournal of Membrane Science
Volume241
Issue number2
DOIs
Publication statusPublished - 2004 Oct 1

Fingerprint

Alkenes
paraffins
propylene
Silver
Paraffin
Paraffins
alkenes
Olefins
Propylene
Polymers
dissolving
Dissolution
Salts
silver
salts
Propane
polymers
membranes
Membranes
propane

All Science Journal Classification (ASJC) codes

  • Filtration and Separation
  • Polymers and Plastics

Cite this

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Olefin-induced dissolution of silver salts physically dispersed in inert polymers and their application to olefin/paraffin separation. / Kim, Jong Hak; Won, Jongok; Kang, Yong Soo.

In: Journal of Membrane Science, Vol. 241, No. 2, 01.10.2004, p. 403-407.

Research output: Contribution to journalArticle

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