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In situ modification of microporous membranes
Author(s) -
Gabriel E. M.,
Gillberg G. E.
Publication year - 1993
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.1993.070481202
Subject(s) - microporous material , membrane , acrylic acid , monomer , polymer chemistry , chemical engineering , aqueous solution , polymer , materials science , chemistry , organic chemistry , biochemistry , engineering
Under proper conditions, in situ polymerizations of acrylic acid monomer solutions were performed within the microporous structures of a hydrophobic membrane, Celgard ® 2500. poly(acrylic acid) modified pores have been characterized to be permanently wettable by aqueous solutions, to be capable of gelling water to withstand increased transmembrane pressure gradients, and also to possess a higher transmembrane electrical resistance. In cases of less concentrated acrylic acid monomer solutions, a cross‐linker was employed to facilitate polymer permanency within the infrastructure of the hydrophobic membranes. © 1993 John Wiley & Sons, Inc.