초록 |
Graphene oxide (GO) is one-atomic-thick, two dimensional material containing hydrophilic functional groups and it can be also well-dispersed in aqueous solution. Using the dispered GO solution, one can prepare thin-film GO composite membranes consisting of GO layer and microporous organic polymeric membranes. Recently we have demonstrated the fundamental transport properties in such GO membranes prepared using various fabrication methods. In this study, various water soluble polymers were added into GO solution, and the GO/Polymer-coated composite membranes were prepared to investigate the gas transport properties (e.g., gas permeability and selectivity) as a function of pressure or temperature. |