%0 conference lecture %@ %A Albrecht, W.,Weigel, T.,Seifert, B.,Schossig-Tiedemann, M.,Hilke, R.,Paul, D. %D 2002 %J 15th International Congress of Chemical and Process Engineering, CHISA 2002 %N %P %T Amination of polyimide membranes using bi- or multivalent amines %U %X