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AssigneeUniversity of Pittsburgh
InventorsEric J. Beckman, Traian Sarbu, Thomas J. Styranec
Estimating the term…
A method of synthesizing a CO2-philic analog of a CO2-phobic compound, includes the step of: reacting the CO2-phobic compound with a CO2-philic compound selected from the group of a polyether substituted with at least one side group including preferably a Lewis base, a polycarbonate, a polycarbonate substituted with at least one side group including preferably a Lewis base, a vinyl polymer substituted with at least one side group including preferably a Lewis base a poly(ether-ester) or a poly(ether-ester) substituted with at least one side group including preferably a Lewis base, to create the CO2-philic analog. A method of synthesizing a CO2-phile includes the step of copolymerizing at least two monomers, wherein a polymer formed from homopolymerization of one of the monomers has a Tg of less than approximately 250 K and a steric factor less than approximately 1.8, at least one of the monomers contains a group that results in a pendant group from the CO2-phile backbone that contains a Lewis base group, and the resultant CO2-phile does not contain both hydrogen bond donors and acceptors.
A method of synthesizing a CO2-philic analog of a CO2-phobic compound that is more CO2-philic than the CO2-phobic compound, comprising the step of:
A surfactant for use in carbon dioxide, the surfactant comprising a CO2-phobic group covalently linked to a CO2-philic segment, wherein the CO2-philic segment comprises a polyether substituted with at least one side group incorporating a Lewis base, a poly(ether-carbonate), a poly(ether-carbonate) substituted with at least one side group incorporating a Lewis base, a vinyl polymer substituted with at least one side group incorporating a Lewis base, a poly(ether-ester) or a poly(ether-ester) substituted with at least one side group incorporating a Lewis base.
The surfactant of claim 36 wherein R22′ is —(CH2)a— and a is an integer between 0 and 5.
A chelating agent for use in carbon dioxide, the chelating agent comprising a CO2-phobic chelating group covalently linked to a CO2-philic segment, wherein the CO2-philic segment comprises a polyether substituted with side groups incorporating a Lewis base, a poly(ether-carbonate), a poly(ether-carbonate) substituted with side groups incorporating a Lewis base, a vinyl polymer substituted with side groups incorporating a Lewis base, or a poly(ether-ester).
A method of synthesizing a CO2-philic copolymer comprising the step of copolymerizing at least two monomers, wherein a polymer formed from homopolymerization of one of the monomers has a Tg of less than approximately 250 K and a steric factor less than approximately 1.8, at least one of the monomers results a Lewis base group in the copolymer, and the resultant CO2-phile does not contain both hydrogen bond donors and acceptors.
A method of synthesizing a CO2-phile comprising the step of copolymerizing carbon dioxide and at least one oxirane.
Dependencies are inferred from the claim text.