Blends of polyethersulfones with aromatic polymides, polyamides or polyamide-imides useful for making gas separation membranes

摘要

The present invention provides a three-component blend of (i) certain aromatic polyethersulfones, (ii) certain aromatic polyimides, and (iii) certain aromatic polyimides, polyamides or polyamide-imides or mixtures thereof. The blends provide gas separation membranes with superior gas transport properties.