Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
634938 | Journal of Membrane Science | 2012 | 12 Pages |
Abstract
⺠Partially pyrolyzed membranes (PPMs) were prepared from copolyimides with side PEO. ⺠PEO side chains were removed at 385 °C to prepare the corresponding PPMs. ⺠The copolyimide framework of PPMs was maintained after the pyrolysis. ⺠Gas permeability of PPMs increased compared to the corresponding precursors. ⺠Pyrolysis of the PEO groups increased the free volume element size and concentration.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
R.M. Huertas, C.M. Doherty, A.J. Hill, A.E. Lozano, J. de Abajo, J.G. de la Campa, E.M. Maya,