Gas capture using polymeric particles

A material for selective adsorption of carbon dioxide, the material comprising particles of polymerized droplets of uniform or substantially uniform sphericity formed from a cross linked polymer and having nanocavities with carbon dioxide-philic functional groups having a greater affinity for carbon dioxide molecules than other molecules in a mixed gas stream, the particles having a specific surface area SBET of 328-443 m2/g, the carbon dioxide-philic functional groups covalently incorporated on walls of the nanocavities, onto which molecules of carbon dioxide are able to be selectively adsorbed,

• wherein each of the nanocavities is sized and shaped to be structurally complementary with two carbon dioxide molecules due to a distance between the carbon dioxide-philic functional groups within the nanocavities sufficient for two kinematic diameters of 0.33 nm to facilitate selective adsorption of the carbon dioxide molecules by entrapment of the carbon dioxide molecules into the nanocavities,
• wherein the carbon dioxide-philic functional groups is one of an amide group, an amine group, a carboxyl group, and a hydroxyl group.

A material for selective adsorption of carbon dioxide, the material comprising particles of polymerized droplets of irregular, rounded shape formed from clustered and partially-fused spherical or substantially spherical polymer particles and having nanocavities with carbon dioxide-philic functional groups having a greater affinity for carbon dioxide molecules than other molecules in a mixed gas stream, the particles having a specific surface area SBET of 328-443 m2/g, the carbon dioxide-philic functional groups covalently incorporated on walls of the nanocavities, onto which molecules of carbon dioxide are able to be selectively adsorbed,

• wherein each of the nanocavities is sized and shaped to be structurally complementary with two carbon dioxide molecules due to a distance between the carbon dioxide-philic functional groups within the nanocavities sufficient for two kinematic diameters of 0.33 nm to facilitate selective adsorption of the carbon dioxide molecules by entrapment of the carbon dioxide molecules into the nanocavities,
• wherein the carbon dioxide-philic functional groups is one of an amide group, an amine group, a carboxyl group, and a hydroxyl group.