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AssigneeCornell University
InventorsWilliam R. Dichtel, Alaaeddin Alsbaiee, Brian J. Smith, Juan Hinestroza, Diego Alzate-Sanchez, Leilei Xiao, Yuhan Ling, Damian Helbling
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A nucleophilic substitution reaction to crosslink cyclodextrin (CD) polymer with rigid aromatic groups, providing a high surface area, mesoporous CD-containing polymers (P-CDPs). The P-CDPs can be used for removing organic contaminants from water. By encapsulating pollutants to form well-defined host-guest complexes with complementary selectivities to activated carbon (AC) sorbents. The P-CDPs can rapidly sequester pharmaceuticals, pesticides, and other organic micropollutants, achieving equilibrium binding capacity in seconds with adsorption rate constants 15-200 times greater than ACs and nonporous CD sorbents. The CD polymer can be regenerated several times, through a room temperature washing procedure, with no loss in performance.
A mesoporous polymeric material comprising one or more cyclodextrins crosslinked with at least an equimolar amount of one or more aryl compounds that can react with a cyclodextrin to form an aryl ether bond, wherein the one or more aryl compounds are substituted with 2 or more chloride groups.
Dependencies are inferred from the claim text.