Covalent organic frameworks for gas chromatographic separations
AssigneeNorthwestern University
InventorsWilliam Robert Dichtel, Anusree Natraj, Woojung Ji, Kareem Y. Mahmoud, Mohamed Ateia Ibrahim
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Abstract
Disclosed herein are single crystal imine-linked 2D-covalent organic frameworks (COFs), methods of making and using the same. In some embodiments, the imine-linked 2D-covalent organic frameworks are used to separate a mixture.
Claims22
A covalent organic framework (COF) platelet having lateral dimensions of at least 400 nm, wherein the COF platelet comprises a multiplicity of crystals of an imine-linked 2D-COF oriented with inter-sheet stacking in a direction out-of-plane with the lateral dimensions and wherein each of the multiplicity of crystals of imine-linked 2D-COF comprise a substantially single-crystalline domain.
A method for preparing a COF platelet comprising contacting a building unit and a linking group in a nitrile-containing solvent in the presence of a modulator of polymerization and catalyst for defect correction, wherein the building unit comprises a molecular subunit having two or more functional termini that covalently bond via an imine bond with an equal number of linking groups.
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Dependencies are inferred from the claim text.