抄録
The syntheses of novel graft copolyamides containing both of poly(ethylene oxide) (PEO) and polydimethylsiloxane (PDMS) in the side chains were carried out by a macromonomer method, in order to develop a new functional membrane material which were expected to possess the high permeability of PDMS and the functionality of PEO-metal complex. For this purpose, 3,5-bis(4-carboxyphenyloxy)phenyloxy-terminated PEO (BCPP-PEO) and 3,5-bis(4-aminophenoxy)benzyloxypropyl-terminated PDMS (BAPB-PDMS) were synthesized as macromonomers. The polycondensations of BCPP-PEO and BAPB-PDMS yielded the desired PDMS/PEO alternately grafted aromatic polyamide (PA-g-SE). Copolymer membranes were prepared by solvent casting method, and the gas permeability of these membranes was evaluated. As a result, PA-g-SE membrane exhibited the higher gas permeability than PEO-grafted polyamide membrane (PA-g-PEO). Furthermore, the selectivity of olefin gas through the membrane was effectively advanced by the addition of Ag ion to the copolymer membrane.
