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Preparation of porous poly(oxymethylene) membrane with high durability against solvents by a thermally induced phase‐separation method
Author(s) -
Matsuyama Hideto,
Kakemizu Masaki,
Maki Taisuke,
Tearamoto Masaaki,
Mishima Kenji,
Matsuyama Kiyoshi
Publication year - 2001
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.10147
Subject(s) - membrane , permeance , materials science , solvent , chemical engineering , porosity , crystallization , polymer , polymer chemistry , phase (matter) , toluene , composite material , chemistry , organic chemistry , permeation , biochemistry , engineering
Abstract Porous poly(oxymethylene) membranes were prepared as new solvent‐resistant membranes by a thermally induced phase‐separation method. Porous structures were formed by solid–liquid phase separation (polymer crystallization) rather than liquid–liquid phase separation. The pores existed in the intraspherulitic and interspherulitic regions. The effects of the polymer weight percentage and cooling rate on toluene permeance and solute rejection were investigated. The solvent resistance of the membranes was tested by the immersion of the membranes in organic solvents for 1 month, and high durability against the solvents was confirmed. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 1993–1999, 2002