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Production of polymeric membranes made of polypropylene, poly(ethylene‐ co ‐vinyl acetate), and poly(vinyl alcohol)
Author(s) -
Maciel A.,
Aguilar M.,
Luis A.,
Manero O.
Publication year - 2004
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.20277
Subject(s) - vinyl alcohol , vinyl acetate , polypropylene , materials science , polymer chemistry , membrane , chemical engineering , solvent , toluene , copolymer , polymer , chemistry , composite material , organic chemistry , biochemistry , engineering
In this study, we prepared and characterized membranes containing polypropylene, poly(ethylene‐ co ‐vinyl acetate) (EVA), and poly(vinyl alcohol) (PVA). The production process involved blend extrusion and calendering followed by solvent extraction by toluene and water of the EVA and PVA phases. Morphology studies involving scanning electron microscopy determined the pore size distribution at the surface and in the internal regions of the membrane. The resulting membrane properties were related to the processing variables (extension rate, process temperature, and solvent extraction methods) and blend composition. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 3275–3286, 2004