GAS SEPARATION MEMBRANES COMPRISING MISCIBLE BLENDGAS SEPARATION MEMBRANES COMPRISING MISCIBLE BLENDS OF POLYIMIDE POLYMERS S OF POLYIMIDE POLYMERS

摘要

2079798 9115285 PCTABS00007 The present invention provides for gas separation membranes which are engineered to have specific gas transport properties based on the blending of certain polymers. In preferred embodiments, the blended polymers are polyimides which have different molecular structures and different gas transport properties. Despite these differences, however, the polymers are completely miscible and can be effectively utilized to prepare gas separation membranes having specifically tailored properties.