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Selective permeation of carbon dioxide through synthetic polymer membranes having pyridine moiety as a fixed carrier
Author(s) -
Yoshikawa Masakazu,
Ezaki Tomohiko,
Sanui Kohei,
Ogata Naoya
Publication year - 1988
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.1988.070350113
Subject(s) - membrane , moiety , permeation , pyridine , sorption , polymer chemistry , polymer , solubility , chemistry , synthetic membrane , adsorption , molecule , organic chemistry , chemical engineering , biochemistry , engineering
Sorption and permeation of CO 2 were investigated by using synthetic polymer membranes having pyridine moiety or pyridine–Cu(II) complex group as a fixed carrier. The solubility data for CO 2 were interpreted by the dual sorption model, Henry's law plus Langmuir‐type adsorption. The permeation results of CO 2 through the present membranes containing pyridine moiety were analyzed in terms of the partial immobilization model, while the solubilities and permeablities of O 2 and N 2 obeyed Henry's law. Permselectivity of the present membrane for CO 2 was achieved. These results were explained by the acid‐base interaction between CO 2 molecules and fixed carrier in the present membrane.