Mixed matrix membranes composed of various polymer matrices and magnetic powder for air separation
Aleksandra Rybak1, Zbigniew J. Gryzwna1, Petr Sysel2
1Department of Physical Chemistry and Technology of Polymers, Section of Physics and Applied Mathematics, Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
2 Ústav polymerů, Vysoká škola chemicko-technologická v Praze
Sep. Purif. Technol. 2013, 118, 424-431 IF=2.894
The materials based on the quite new combination of a thermally stable hyperbranched polyimide matrix and neodymium magnetic powder with a specific geometry have been tested as the flat, dense membranes for air separation. The very hopeful oxygen enrichment in one permeation run was obtained. Therefore, these materials should be taken into consideration in larger-scale gas separation tests.
Both the solutions of polyimide precursors, linear and hyperbranched polyamic acids, and the corresponding pure polyimides were prepared and characterized at the Institute of Chemical Technology, Prague. The manuscript was written in the association with other co-authors.