Unusual separation property of propylene/propane mixtures through polymer/silver complex membranes containing mixed salts
作者： Jong Hak Kim , Su Mi Park , Jongok Won , Yong Soo Kang
DOI: 10.1016/J.MEMSCI.2004.09.030
关键词: Propane 、 Permeation 、 Electrolyte 、 Salt (chemistry) 、 Selectivity 、 Olefin fiber 、 Membrane 、 Chemistry 、 Polymer 、 Polymer chemistry
摘要: Abstract Previously we have found that the facilitated olefin transport through polymer/silver complex membranes is sensitive to type of counteranion salt; separation performances including permeance and selectivity propylene/propane are in order AgBF 4 > AgCF 3 SO ≫ AgNO . Here salt consisting two mixed salts dissolved poly(2-ethyl-2-oxazoline) (POZ) were prepared tested for mixtures. Upon mixing AgNO with or AgCF , unusually increased certain composition ranges. The permeation behavior was interpreted terms both activity silver ion as carrier structural change polymer electrolyte using FT-IR spectroscopy wide angle X-ray scattering (WAXS). As a result, anomalous enhancement attributable mainly compactness membranes, resulting from transient cross-links chains by coordination small sized
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