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Porous polydimethylsiloxane membranes treated with aminopropyltrimethoxysilane
Author(s) -
Kobayashi Takaomi,
Saitoh Hitoshi,
Fujii Nobuyuki
Publication year - 1994
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.1994.070510311
Subject(s) - membrane , polydimethylsiloxane , ultrafiltration (renal) , hydrosilylation , materials science , polymer chemistry , oligomer , polystyrene , chemical engineering , siloxane , permeation , chemistry , chromatography , polymer , organic chemistry , composite material , catalysis , biochemistry , engineering
Polydimethylsiloxane (PDMS) membranes were made by catalytic hydrosilylation of a siloxane compound having a vinyl group and an SiH group in the presence of 1,4‐dioxane. By washing it with water many pores were formed in the membrane. Then, the pore size of the membrane was controlled by treatment of aminopropyltrimethoxysilane (APTMS) solution. When increasing the APTMS concentration, the pore size of the membrane was reduced by the formation of APTMS oligomer on the surface of the membrane. The characteristics of the membrane was examined by IR, ATR‐IR, and SEM techniques. Also, the permeation properties of dextrans and polystyrene latexes through the treated membrane were examined by the ultrafiltration method. © 1994 John Wiley & Sons, Inc.