Polyimide/aliphatic polyester copolymers

Details Polyimide/aliphatic polyester copolymers Polyimide/aliphatic polyester copolymers

C - Chemistry, Metallurgy

08

G

182/13, 400/2014

C08G 73/16 (2006.01) B01D 61/36 (2006.01) B01D 71/64 (2006.01) B01D 71/80 (2006.01) C07C 7/144 (2006.01)

Patent

CA 2026788

A new copolymer composition comprising the hard segment of a polyimide and the soft segment of an oligomeric aliphatic polyester. The new polyimide copolymer membranes have exhibited high thermal stability for separation of an aromatic/saturate mixture. These new membranes have higher aromatic/ saturate selectivity than polyurethanes.

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