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Carbon membranes from precursors containing low‐carbon residual polymers
Author(s) -
Linkov Vladimir M.,
Sanderson Ron D.,
Jacobs Ed P.
Publication year - 1994
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1994.210350304
Subject(s) - polyacrylonitrile , polymer , membrane , carbonization , materials science , miscibility , chemical engineering , polyvinylpyrrolidone , carbon fibers , polymer chemistry , pyrolysis , polyethylene glycol , porosity , chemistry , composite material , scanning electron microscope , biochemistry , composite number , engineering
Asymmetrical hollow‐fibre carbon membranes with increased porosity were obtained by carbonization of polyacrylonitrile based precursors containing high quantities of polymers, such as polyethylene glycol and polyvinylpyrrolidone, which give low‐carbon residue upon pyrolysis. The interaction between molecules of the two polymers, which could serve as evidence of at least partial miscibility of these polymers, occurred only with PVP‐containing precursors. The narrowest pore‐size distribution was inherent in carbon membranes produced from such precursors.