title: High-Performance Polymers for Membrane CO2/N2Separation.
abstract: This Concept examines strategies to design advanced polymers with high CO2permeability and high CO2/N2selectivity, which are the key to the success of membrane technology for CO2capture from fossil fuel-fired power plants. Specifically, polymers with enhanced CO2solubility and thus CO2/N2selectivity are designed by incorporating CO2-philic groups in polymers such as poly(ethylene oxide)-containing polymers and poly(ionic liquids); polymers with enhanced CO2diffusivity and thus CO2permeability are designed with contorted rigid polymer chains to obtain high free volume, such as polymers with intrinsic microporosity and thermally rearranged polymers. The underlying rationales for materials design are discussed and polymers with promising CO2/N2separation properties for CO2capture from flue gas are highlighted.
authors.affiliation: Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA.
authors.forename: Junyi
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA.
authors.forename: Xianda
authors.initials: X
authors.lastname: Hou
authors.affiliation: WCU Department of Energy Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, South Korea.
authors.forename: Ho Bum
authors.initials: HB
authors.lastname: Park
authors.affiliation: Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA. haiqingl@buffalo.edu.
authors.forename: Haiqing
authors.identifier: http://orcid.org/0000-0001-8042-154X
authors.initials: H
authors.lastname: Lin
keywords: carbon storage; ionic liquids; membranes; polymers; porous materials