Volume 95 Issue 4 | p. 8 | Concentrates
Issue Date: January 23, 2017

Covalent organic frameworks form processible colloids

Nitrile solvent prevents usual precipitation, making porous crystallites easier to handle
Department: Science & Technology
Keywords: materials, frameworks, covalent organic framework, COF, polymer

Covalent organic frameworks (COFs) are crystalline porous polymers with features that include having a pore size that can be tailored by choosing suitable building blocks. Researchers are examining COFs and other types of framework compounds for use as selective membranes, catalyst supports, and other applications. But COFs tend to form tough-to-process insoluble microcrystalline powders, thwarting those efforts. Help may now be on the way thanks to a study reporting a method to prepare COFs as . . .

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