Kim, JH Won, J Kang, YS 2024-01-21T06:11:10Z 2024-01-21T06:11:10Z 2021-09-05 2004-10-01 0376-7388 https://pubs.kist.re.kr/handle/201004/137146 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 similar to60 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. (C) 2004 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV FACILITATED TRANSPORT MEMBRANES POLY(ETHYLENE OXIDE) IONS ELECTROLYTES COMPLEXATION PROPYLENE MECHANISM PERMEATION ETHYLENE OXYGEN Olefin-induced dissolution of silver salts physically dispersed in inert polymers and their application to olefin/paraffin separation Article 10.1016/j.memsci.2004.05.027 1 JOURNAL OF MEMBRANE SCIENCE, v.241, no.2, pp.403 - 407 JOURNAL OF MEMBRANE SCIENCE 241 2 403 407 scie scopus 000223577000025 2-s2.0-4043153571 Engineering, Chemical Polymer Science Engineering Polymer Science Article FACILITATED TRANSPORT MEMBRANES POLY(ETHYLENE OXIDE) IONS ELECTROLYTES COMPLEXATION PROPYLENE MECHANISM PERMEATION ETHYLENE OXYGEN silver inert membrane propylene facilitated transport physical dispersion