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Solute–membrane interactions in hyperfiltration
Author(s) -
Chen J.Y.,
Pusch W.
Publication year - 1987
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1987.070330532
Subject(s) - membrane , hydrogen bond , steric effects , chemistry , aqueous solution , dissociation (chemistry) , permeability (electromagnetism) , chemical engineering , molecule , organic chemistry , biochemistry , engineering
The performances of several composite membranes (PEC‐1000, Teijin, HR‐95, HR‐98) and one asymmetric membrane (Solrox SC‐200) in hyperfiltration are compared at 25°C using different aqueous feed solutions (0.1 M and 0.5 M NaCl, 0.5 M 1,3‐and 1,4‐dioxan, 0.1 M benzyl alcohol and 2‐methoxybenzyl alcohol, 1,2‐ and 1,4‐butandiol, and Triton feed solution). The effects of solute dissociation, polarization, and hydrogen bonding ability on solute permeability are discussed; steric effects are also being considered. Strong solute–membrane interactions are exhibited in hyperfiltration by systems with distinct hydrogen bonding capabilities of the solute with functional sites of the membrane matrix. Knowledge of solute–membrane interactions can be useful for elaborating separation and transport mechanisms.