Crosslinked Polybenzimidazole Membrane For Gas Separation

Patent · Tue Sep 20 00:00:00 EDT 2005

OSTI ID:880097

Jorgensen, Betty S ^[1]; Young, Jennifer S ^[2]; Espinoza, Brent F ^[2]

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1. Jemez Springs, NM
2. Los Alamos, NM

A cross-linked, supported polybenzimidazole membrane for gas separation is prepared by layering a solution of polybenzimidazole (PBI) and a,a'dibromo-p-xylene onto a porous support and evaporating solvent. A supported membrane of cross-linked poly-2,2'-(m-phenylene)-5,5'-bibenzimidazole unexpectedly exhibits an enhanced gas permeability compared to the non-cross linked analog at temperatures over 265° C.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: The Regents of the University of California (Los Alamos, NM)
• Patent Number(s): US 6,946,015
• Application Number: 10/607589
• OSTI ID: 880097
• Country of Publication: United States
• Language: English