Interfacial engineering of a polymer-MOF composite by in situ vitrification

Chem Commun (Camb). 2020 Mar 26;56(25):3609-3612. doi: 10.1039/d0cc00664e.

Abstract

Non-stoichoimetric crystalline ZIF-62 was used as the filler for a 6FDA-DAM polyimide-based composite membrane. In situ melting and vitrification of ZIF-62 was then performed, to yield the ZIF-62 glass phase (agZIF-62), within the polymer matrix. Focus ion beam scanning electron microscopy (FIB-SEM), thermal characterisation and membrane separation tests demonstrate the filling of voids at the MOF/polymer interface from the liquid phase of ZIF-62.