Patent ID: 8030399
Filing Date: 2011-10-04
Classification: B01D,C08B,C08G,C08L,Y02C,Y02P

Abstract:
1. A process for separating at least one gas from a mixture of gases, the process comprising: a) providing a crosslinked organic-inorganic hybrid polymer membrane comprising a crosslinked organic-inorganic hybrid polymer made from at least two different precursor organic polymers having hydroxyl, amino, epoxy, isocyanato, or dianhydride groups wherein said precursor organic polymers are is selected from the group consisting of poly(ethylene oxide) (PEO), cellulose acetate (CA), poly(propylene oxide) (PPO), co-block-poly(ethylene oxide)-poly(propylene oxide) (PEO-PPO), tri-block-poly(propylene oxide)-poly(ethylene oxide)-poly(propylene oxide) (PPO-PEO-PPO), poly(propylene glycol)-block-poly(ethylene glycol)-block-poly(propylene glycol) bis(2-aminepropyl ether) (PAPE), dendritic PEO, and hyperbranched amine-terminated PEO, and crosslinked with an organosilicon alkoxide crosslinking agent; and b) contacting the mixture of gases to a first side of the crosslinked organic-inorganic hybrid polymer membrane to cause said at least one gas to permeate the mixed matrix membrane; and c) removing from a second side of the membrane a permeate gas composition comprising at least a portion of said at least one gas which permeated said membrane.