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US 11,446,634 B2Granted
Pcstructures including supported polyamines and methods of making the supported polyamines
AssigneesGeorgia Tech Research Corporation, Global Thermostat Operations, LLC
InventorsSimon H. Pang, Christopher W. Jones, Li-Chen Lee, Miles A. Sakwa-Novak, Michele Sarazen
Life of this patent
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Abstract
Methods of making a poly(propylenimine) (PPI) sorbent, a PPI sorbent, structures including the PPI sorbent, methods of separating CO2 using the PPI sorbent, and the like, are disclosed.
Claims22
A material comprising:
- a porous structure having supported thereon a poly(propylenimine) (PPI) sorbent, wherein the PPI sorbent is in a plurality of pores of the porous structure, wherein the PPI sorbent comprises a linear PPI, a branched PPI, a hyperbranched PPI, or a combination thereof;
- wherein the PPI sorbent is physically impregnated in the porous structure and not covalently bonded to the porous structure;
- wherein the PPI sorbent has a loading of about 10% to 75% by weight of the composite and a counterion content, wherein the counterion content is present and less than about 0.1 mol counterion/mol amine.
A material comprising:
- a porous structure having supported thereon a linear poly(propylenimine) (PPI) sorbent, wherein the linear PPI sorbent is in a plurality of pores of the porous structure, wherein the PPI sorbent is covalently bonded within pores of the porous structure, wherein the linear PPI sorbent has a loading of about 10% to 75% by weight of the composite and a counterion content, wherein the counterion content is present and less than about 0.1 mol counterion/mol amine.
Dependencies are inferred from the claim text.