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Effects of polymerization conditions on the properties of poly(furfuryl alcohol) composite membranes
Author(s) -
He Li,
Li Dan,
Dong Dehua,
Yao Jianfeng,
Huang Yi,
Wang Huanting
Publication year - 2011
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.35356
Subject(s) - furfuryl alcohol , membrane , polysulfone , polymer chemistry , polymerization , permeation , materials science , solvent , chemical engineering , chemistry , polymer , catalysis , organic chemistry , composite material , biochemistry , engineering
Poly(furfuryl alcohol) (PFA) composite membranes were prepared by polymerization of furfuryl alcohol (FA) using sulfuric acid (H 2 SO 4 ) as the catalyst and polysulfone ultrafiltration membrane as the substrate. The membrane samples were characterized by ATR‐IR, TGA, SEM, and gas permeation technique. The effects of synthesis conditions including the FA/H 2 SO 4 molar ratio, polymerization temperature, and the type of solvent on the chemical structure, surface morphology, and gas permeation properties of PFA composite membranes were studied. Our results showed that the suitable synthesis conditions for the preparation of PFA composite membranes with smooth surfaces and uniform structure include (1) FA/H 2 SO 4 molar ratios: 74‐300, (2) polymerization temperatures: 80–100°C, and (3) solvents: ethanol and acetone. The PFA composite membrane prepared with a FA/H 2 SO 4 molar ratio of 250, a polymerization temperature of 80°C and ethanol as the solvent exhibited the highest H 2 /N 2 ideal selectivity ( $ {\rm{\alpha }}_{{\rm{H}}_{\rm{2}} {\rm{/N}}_{\rm{2}} } = 24.9 $ ), and a H 2 permeability of 206 Barrers. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012