Open AccessCharacterization of porous polyacrylonitrile membranes by liquid-liquid displacement technique
Author(s) -
A. V. Balynin,
A. A. Yushkin,
М. Н. Ефимов,
Д. Г. Муратов,
А. В. Волков
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1696/1/012039
Subject(s) - permeance , membrane , polyacrylonitrile , materials science , porosity , casting , chemical engineering , characterization (materials science) , polymer chemistry , composite material , polymer , chemistry , nanotechnology , permeation , biochemistry , engineering
In this work, series of PAN membranes were prepared by the combined VIPS/NIPS method using different solvents. These membranes were investigated by using liquid-liquid displacement method for membrane pore size distribution and membrane permeance measurements. Wide range of pores size (30-60 nm) and membrane permeance up to 400 L/m 2 ·h·bar were achieved depending on the casting conditions. It was shown that longer exposure in water vapor leads to higher pore size and at the same time makes membrane less permeable due to low asymmetry of porous structure..