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Preparation, characterization, and adsorption properties of cellulose acetate‐polyaniline membranes
Author(s) -
Rodríguez F.,
CastilloOrtega M. M.,
Encinas J. C.,
Grijalva H.,
Brown F.,
SánchezCorrales V. M.,
Castaño V. M.
Publication year - 2008
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.29008
Subject(s) - membrane , plasticizer , cellulose acetate , polyaniline , materials science , polymer chemistry , chemical engineering , glass transition , adsorption , scanning electron microscope , nuclear chemistry , chemistry , organic chemistry , polymer , composite material , polymerization , biochemistry , engineering
Four lots of cellulose acetate (CA) membranes, modified with polyacrylic acid, using various plasticizers, and coated with polyaniline (PANI) were prepared. The morphology of the membranes was evaluated by using scanning electron microscopy, and the membranes showed larger pore size when the plasticizers were used. The electrical conductivity of the modified membranes and coated with PANI increased by two orders of magnitude when the plasticizer triphenyl phosphate was used. The strain at break improved by an order of magnitude and the glass transition temperature ( T g ) showed an average decrease of 36°C when the membranes were plasticized. Finally, these membranes were tested as ion‐exchange materials of a gold‐iodide complex. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009