| 초록 |
Gas transport behaviors through polymeric membranes have been extensively studied to relate polymer chemistry with gas separation properties, because it is well-known that a chemical structure of polymeric membranes generally determines the intrinsic gas separation features in terms of gas permeability and selectivity. Thus, most research has focused on to synthesize advanced membrane materials with fast permeation and high selectivity for a desired separation. However, considering a fact that gas molecules diffuse through thermodynamic void (or pore) in a dense polymeric membrane and a packing density of a polymer is influenced by polymer chain length, a question has arisen concerning the relationship between physical structures and gas transport properties. To find the correlation, we here describe gas separation properties using methyl cellulose, which is well controlled and defined physical properties such as molecular weight. More detail will be addressed in this poster. |
