Facile fabrication of mixed matrix membranes from simultaneously polymerized hyperbranched polymer/modified graphene oxide for MTBE/MeOH separation

An in-situ polymerization modification method was adopted to enhance the dispersion and compatibility of GO nanosheets in the polymeric matrix. With the incorporated of 2D GO nanosheets, the structure of the resultant membrane was changed from “pore-filling” to “non-pore-filling”. Besides, a “brick-and-mortar” architecture was evidently exhibited in the cross-section of HPMA-GO membrane.356