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AssigneesUT-Battelle, LLC, University of Tennessee Research Foundation
InventorsTao Hong, Sabornie Chatterjee, Shannon Mark Mahurin, Brian Keith Long, De-en Jiang, Jimmy Wayne Mays, Alexei P. Sokolov, Tomonori Saito
Estimating the term…
A membrane useful in gas separation, the membrane comprising a cross-linked polysiloxane structure having a cross-link density of about 0.1×10−5 mol/cm3 to about 6×10−5 mol/cm3, where, in particular embodiments, the cross-linked polysiloxane structure has the following general structure: wherein R1, R2, R3, R4, R5, and R6 are independently selected from hydrocarbon groups having at least 1 and up to 6 carbon atoms; A1 and A2 are independently selected from cyclic hydrocarbon groups; L1 and L2 are linking groups or covalent bonds; n is an integer of at least 1; r and s are independently selected from integers of at least 1; and p is an integer of at least 10. The invention also includes methods for making and using the above-described membranes for gas separation.
A membrane useful in gas separation, the membrane comprising a cross-linked polysiloxane structure having a cross-link density of about 0.1×10−5 mol/cm3 to no more than 2.5×10−5 mol/cm3.
A method for producing a membrane useful in gas separation, the method comprising subjecting a polysiloxane precursor to a cross-linking reaction under conditions that result in a cross-linked polysiloxane structure in the shape of a membrane and having a cross-link density of about 0.1×10−5 mol/cm3 to no more than 2.5×10−5 mol/cm3.
A method for at least partially separating carbon dioxide gas from a carbon dioxide-containing mixture of gases, the method comprising passing the carbon dioxide-containing mixture of gases through a membrane comprising a cross-linked polysiloxane structure having a cross-link density of about 0.1×10−5 mol/cm3 to no more than 2.5×10−5 mol/cm3, wherein gas exiting the membrane has an increased carbon dioxide concentration relative to the carbon dioxide-containing mixture of gases before being passed through the membrane.
Dependencies are inferred from the claim text.