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 language | English |
|---|---|
| Pages (from-to) | 403-407 |
| Number of pages | 5 |
| Journal | Journal of Membrane Science |
| Volume | 241 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2004 Oct 1 |
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All Science Journal Classification (ASJC) codes
- Filtration and Separation
- Polymers and Plastics
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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 journal › Article
TY - JOUR
T1 - Olefin-induced dissolution of silver salts physically dispersed in inert polymers and their application to olefin/paraffin separation
AU - Kim, Jong Hak
AU - Won, Jongok
AU - Kang, Yong Soo
PY - 2004/10/1
Y1 - 2004/10/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=4043153571&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2004.05.027
DO - 10.1016/j.memsci.2004.05.027
M3 - Article
VL - 241
SP - 403
EP - 407
JO - Journal of Membrane Science
JF - Journal of Membrane Science
SN - 0376-7388
IS - 2
ER -