Kim, SH Kim, DB Choi, DK Lee, H Kim, HS Won, J 2024-01-21T07:10:23Z 2024-01-21T07:10:23Z 2021-09-02 2004-04-15 0376-7388 https://pubs.kist.re.kr/handle/201004/137671 The facilitated transport membranes, AgClO4-CA (cellulose acetate) and AgBF4-CA were prepared and tested for the separation of isoprene/pentane mixture. The maximum selectivities for isoprene over pentane were found to be 53 and 83 for AgClO4-CA and AgBF4-CA membranes. respectively. Fr-IR and UV-Vis studies show that the silver ions in the membranes are coordinated by the carbonyl groups of CA. Reversible diene coordination to silver ions was observed by FT-IR and UV-Vis studies. Treatment of the AgBF4-CA membrane placed in a gas cell with isoprene produces an isoprene-coordinated membrane in which the coordinated isoprene is easily replaced by other diene compounds such as trans-piperylene and 1,3-butadiene. (C) 2004 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV ION-EXCHANGE MEMBRANES OLEFIN/PARAFFIN SEPARATION POLYMER MEMBRANES SILVER IONS OLEFIN TRANSPORT PERMEATION 1-BUTENE ALKENES CARRIER Isoprene/pentane separation using facilitated transport membranes Article 10.1016/j.memsci.2004.01.007 1 JOURNAL OF MEMBRANE SCIENCE, v.233, no.1-2, pp.113 - 117 JOURNAL OF MEMBRANE SCIENCE 233 1-2 113 117 scie scopus 000220761300012 2-s2.0-1842585128 Engineering, Chemical Polymer Science Engineering Polymer Science Article ION-EXCHANGE MEMBRANES OLEFIN/PARAFFIN SEPARATION POLYMER MEMBRANES SILVER IONS OLEFIN TRANSPORT PERMEATION 1-BUTENE ALKENES CARRIER isoprene/pentane separation cellulose acetate facilitated transport membrane alkene/alkane silver salts