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Development of thin‐film composite membranes for carbon dioxide and methane separation using sulfonated poly(phenylene oxide)
Author(s) -
Rhim JiWon,
Chowdhury Geeta,
Matsuura Takeshi
Publication year - 2000
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/(sici)1097-4628(20000502)76:5<735::aid-app16>3.0.co;2-n
Subject(s) - membrane , permeation , thin film composite membrane , phenylene , oxide , chemical engineering , materials science , polymer chemistry , selectivity , gas separation , substrate (aquarium) , chemistry , polymer , organic chemistry , composite material , catalysis , biochemistry , reverse osmosis , engineering , oceanography , metallurgy , geology
Novel membranes based on sulfonated poly (phenylene oxide) (SPPO) was developed. SPPO membranes in the hydrogen form were converted to metal ion forms. The effect of exchange with metal ions including monovalent (Li + , Na + , K + ), divalent (Mg 2+ , Ba 2+ , Ca 2+ ) and trivalent (Al 3+ ) ions was investigated in terms of permeation rate and permeation rate ratios for CO 2 and CH 4 gases. Both dense homogeneous membranes and thin‐film composite (TFC) membranes were studied for their gas separation characteristics. The effect of membrane preparation conditions and operating parameters on the membrane performance were also investigated. The selectivity of the TFC membrane increased as the cationic charge density increased as a result of electrostatic cross‐linking. TFC membrane of very high selectivity was achieved by coating a thin layer of SPPO‐Mg on a PES substrate. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 76: 735–742, 2000