ポリジメチルシロキサン/ポリエチレンオキシド鎖をグラフト化した芳香族ポリアミドの合成と気体透過性

概要

論文の詳細を見る
Poly (ethylene oxide) (PEO) is one of the highly functional polymers, which have the ability to form complexes with metal ions. On the other hand, polydimethylsiloxane (PDMS) membrane has high permeability for both gases and liquids. However, PEO and PDMS cannot form ultrathin membranes because the glass transition temperatures of these polymers are very low. In this study, the synthesis of novel graft copolyamides with high mechanical strength that contain both PEO and PDMS segments in the side chains was carried out by a macromonomer method, to develop a new functional membrane material that was expected to possess the high permeability of PDMS and the functionality of a PEO-metal complex. The copolymer membranes were prepared by solvent casting, and the gas permeability of these membranes was evaluated. In addition, the effect of the addition of Ag ions to the copolymer membrane on the permselectivity of olefin gas was investigated. As a result, it was found that the introduction of the PDMS segment was effective for improving the gas permeability, and the copolymer membranes with Ag ions exhibited a higher selectivity of olefin gas than that of the copolymer membrane without Ag ions.
東海大学の論文