| 초록 |
A low-cost, one-pot, room-temperature synthesized graft copolymer, i.e., poly(ethylene-alt-maleic anhydride)-g-O-(2-aminopropyl)-O′-(2-methoxyethyl) polypropylene glycol (PEMA-g-PPG) is reported for solid-state facilitated olefin transport membranes. The PEMA-g-PPG graft copolymer was synthesized via a facile one-pot polymerization at room temperature. PEMA-g-PPG works as an polymer matrix for partially polarized silver nanoparticles (AgNPs). As a precursor of AgNPs which can facilitate olefin transport through π-complexation, AgBF4 were added to the PEMA-g-PPG solution. TNCQ which is the strong electron acceptor was applied in the solution to activate surface of AgNPs for partial polarization. The FT-IR proved interactions between PEMA-g-PPG and AgNPs. The membrane with 1:3 wt ratio of PEMA-g-PPG:AgNPs showed the best propylene/propane separation performance. A mixed gas permeance and propylene/propane selectivity was a better than membranes based on commercial polymers. |
