title: Molecularly Designed Stabilized Asymmetric Hollow Fiber Membranes for Aggressive Natural Gas Separation.
abstract: New rigid polyimides with bulky CF3groups were synthesized and engineered into high-performance hollow fiber membranes. The enhanced rotational barrier provided by properly positioned CF3side groups prohibited fiber transition layer collapse during cross-linking, thereby greatly improving CO2/CH4separation performance compared to conventional materials for aggressive natural gas feeds.
authors.affiliation: School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0100, USA. gpliu@njtech.edu.cn.|State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China. gpliu@njtech.edu.cn.
authors.forename: Gongping
authors.initials: G
authors.lastname: Liu
authors.affiliation: School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0100, USA. linanwen@sxicc.ac.cn.|State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China. linanwen@sxicc.ac.cn.
authors.forename: Nanwen
authors.initials: N
authors.lastname: Li
authors.affiliation: Chevron Energy Technology Company, 100 Chevron Way, Richmond, California, 94802-0627, USA.
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Miller
authors.affiliation: School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0100, USA.
authors.forename: Danny
authors.initials: D
authors.lastname: Kim
authors.affiliation: School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0100, USA.
authors.forename: Shouliang
authors.initials: S
authors.lastname: Yi
authors.affiliation: School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0100, USA.
authors.forename: Ying
authors.initials: Y
authors.lastname: Labreche
authors.affiliation: School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0100, USA. wjk@chbe.gatech.edu.
authors.forename: William J
authors.initials: WJ
authors.lastname: Koros
keywords: carbon dioxide capture; cross-linking; hollow fibers; membranes; natural gas