Article ID Journal Published Year Pages File Type
634938 Journal of Membrane Science 2012 12 Pages PDF
Abstract
► Partially pyrolyzed membranes (PPMs) were prepared from copolyimides with side PEO. ► PEO side chains were removed at 385 °C to prepare the corresponding PPMs. ► The copolyimide framework of PPMs was maintained after the pyrolysis. ► Gas permeability of PPMs increased compared to the corresponding precursors. ► Pyrolysis of the PEO groups increased the free volume element size and concentration.
Related Topics
Physical Sciences and Engineering Chemical Engineering Filtration and Separation
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