We present a facile, room temperature synthesis of poly(ethylenealt- maleic anhydride)-graft-poly(propylene glycol) (PEMA-g-PPG) graft copolymer-based CO2/N2 gas separation membrane with 100% conversion reaction without any further purification process. As confirmed by the Fourier transform infrared (FT-IR) and nuclear magnetic resonance (1H NMR) spectroscopy, the PEMA-g-PPG was successfully synthesized with 100% conversion of PEMA and PPG monomers. It was confirmed that the PEMA-g-PPG was amorphous and rubbery state according to the X-ray diffraction (XRD) and differential scanning calorimetry (DSC0 results. Therefore, PEMA-g-PPG/polysufulfone composite membrane exhibited high performance of CO2 permeability (99.1 Barrer) and selectivity (82.6 for CO2/N2 and 26.8 for CO2/CH4), surpassing conventional PEBAX block copolymer membrane.

• 이창수(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Chang Soo Lee
• 정정표(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Jung Pyo Jung
• 임정엽(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Jung Yup Lim
• 김종학(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Jong Hak Kim