TY  - JOUR
A1  - Reiche, Jürgen
A1  - Kamusewitz, Helmut
A1  - Keller, Manuela
A1  - Brehmer, Ludwig
A1  - Peñacorada, Florencio
T1  - Study of gas transport through composite membranes with a stabilised Langmuir-Blodgett skin layer
N2  - The Langmuir-Blodgett (LB-) technique is used to deposit molecular reinforced separation layers on porous polymer substrates resulting in composite membranes for gas separation. The adsorption of a polycation to the arachidic acid Langmuir layer and the subsequent transfer of the highly ordered and stabilised monolayer onto a polypropylene membrane (Cellgard 2400) yields a laminated separation layer combining the advantageous high degree of order of fatty acid films and the stability of thin polymeric films. X-ray reflectivity data of these films confirm the transfer of the assembled polymer layer together with the fatty acid monolayer and the formation of ordered Y-type LB-films. SFM pictures show a dense film without pinholes completely covering the porous support. Gas permeation measurements are used to study the transport process of different gases through the composite membrane.
Y1  - 1995
ER  -