scholarly journals Facile Synthesis of a Hydroxyl-Functionalized Tröger’s Base Diamine: A New Building Block for High-Performance Polyimide Gas Separation Membranes

2017 ◽  
Vol 50 (24) ◽  
pp. 9569-9576 ◽  
Author(s):  
Xiaohua Ma ◽  
Mahmoud Abdulhamid ◽  
Xiaohe Miao ◽  
Ingo Pinnau
Keyword(s):  
Gas Separation ◽  
Building Block ◽  
High Performance ◽  
Facile Synthesis ◽  
Separation Membranes ◽  
Gas Separation Membranes ◽  
Troger's Base

Thermally rearranged polybenzoxazole copolymers incorporating Tröger's base for high flux gas separation membranes

2020 ◽  
Vol 612 ◽  
pp. 118437 ◽  
Author(s):  
Xiaofan Hu ◽  
Won Hee Lee ◽  
Joon Yong Bae ◽  
Ju Sung Kim ◽  
Jun Tae Jung ◽  
...  
Keyword(s):  
Gas Separation ◽  
High Flux ◽  
Separation Membranes ◽  
Gas Separation Membranes ◽  
Troger's Base

Thermally rearranged polybenzoxazoles and poly(benzoxazole-co-imide)s from ortho-hydroxyamine monomers for high performance gas separation membranes

2015 ◽  
Vol 493 ◽  
pp. 329-339 ◽  
Author(s):  
Bibiana Comesaña-Gándara ◽  
Antonio Hernández ◽  
Jose G. de la Campa ◽  
Javier de Abajo ◽  
Angel E. Lozano ◽  
...  
Keyword(s):  
Gas Separation ◽  
High Performance ◽  
Separation Membranes ◽  
Gas Separation Membranes

Highly permeable polyimides incorporating Tröger's base (TB) units for gas separation membranes

2020 ◽  
Vol 615 ◽  
pp. 118533
Author(s):  
Xiaofan Hu ◽  
Won Hee Lee ◽  
Joon Yong Bae ◽  
Jiayi Zhao ◽  
Ju Sung Kim ◽  
...  
Keyword(s):  
Gas Separation ◽  
Separation Membranes ◽  
Gas Separation Membranes ◽  
Troger's Base

scholarly journals Intrinsically Microporous Polymer Nanosheets for High‐Performance Gas Separation Membranes

2019 ◽  
Vol 41 (2) ◽  
pp. 1900572 ◽  
Author(s):  
Marzieh Tamaddondar ◽  
Andrew B. Foster ◽  
Jose M. Luque‐Alled ◽  
Kadhum J. Msayib ◽  
Mariolino Carta ◽  
...  
Keyword(s):  
Gas Separation ◽  
High Performance ◽  
Separation Membranes ◽  
Gas Separation Membranes ◽  
Microporous Polymer

scholarly journals Ultra-selective molecular-sieving gas separation membranes enabled by multi-covalent-crosslinking of microporous polymer blends

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiuling Chen ◽  
Yanfang Fan ◽  
Lei Wu ◽  
Linzhou Zhang ◽  
Dong Guan ◽  
...  
Keyword(s):  
Gas Separation ◽  
High Performance ◽  
Chain Scission ◽  
Crosslinking Reaction ◽  
Separation Processes ◽  
Separation Membranes ◽  
Covalent Crosslinking ◽  
Polymer Of Intrinsic Microporosity ◽  
Troger's Base ◽  
Molecular Sieving

AbstractHigh-performance membranes exceeding the conventional permeability-selectivity upper bound are attractive for advanced gas separations. In the context microporous polymers have gained increasing attention owing to their exceptional permeability, which, however, demonstrate a moderate selectivity unfavorable for separating similarly sized gas mixtures. Here we report an approach to designing polymeric molecular sieve membranes via multi-covalent-crosslinking of blended bromomethyl polymer of intrinsic microporosity and Tröger’s base, enabling simultaneously high permeability and selectivity. Ultra-selective gas separation is achieved via adjusting reaction temperature, reaction time and the oxygen concentration with occurrences of polymer chain scission, rearrangement and thermal oxidative crosslinking reaction. Upon a thermal treatment at 300 °C for 5 h, membranes exhibit an O2/N2, CO2/CH4 and H2/CH4 selectivity as high as 11.1, 154.5 and 813.6, respectively, transcending the state-of-art upper bounds. The design strategy represents a generalizable approach to creating molecular-sieving polymer membranes with enormous potentials for high-performance separation processes.

Sign in / Sign up

Export Citation Format

Share Document