Tröger’s Base-Based Microporous Polyimide Membranes for High-Performance Gas Separation

2014 ◽  
Vol 3 (7) ◽  
pp. 597-601 ◽  
Author(s):  
Zhenggong Wang ◽  
Dong Wang ◽  
Feng Zhang ◽  
Jian Jin
Keyword(s):  
Gas Separation ◽  
High Performance ◽  
Troger's Base ◽  
Polyimide Membranes

Polyimide Membranes: Ultra-Microporous Triptycene-based Polyimide Membranes for High-Performance Gas Separation (Adv. Mater. 22/2014)

2014 ◽  
Vol 26 (22) ◽  
pp. 3775-3775 ◽  
Author(s):  
Bader S. Ghanem ◽  
Raja Swaidan ◽  
Eric Litwiller ◽  
Ingo Pinnau
Keyword(s):  
Gas Separation ◽  
High Performance ◽  
Polyimide Membranes

High-strength, soluble polyimide membranes incorporating Tröger’s Base for gas separation

2016 ◽  
Vol 504 ◽  
pp. 55-65 ◽  
Author(s):  
Yongbing Zhuang ◽  
Jong Geun Seong ◽  
Yu Seong Do ◽  
Won Hee Lee ◽  
Moon Joo Lee ◽  
...  
Keyword(s):  
Gas Separation ◽  
High Strength ◽  
Troger's Base ◽  
Soluble Polyimide ◽  
Polyimide Membranes

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.

Ultra-Microporous Triptycene-based Polyimide Membranes for High-Performance Gas Separation

2014 ◽  
Vol 26 (22) ◽  
pp. 3688-3692 ◽  
Author(s):  
Bader S. Ghanem ◽  
Raja Swaidan ◽  
Eric Litwiller ◽  
Ingo Pinnau
Keyword(s):  
Gas Separation ◽  
High Performance ◽  
Polyimide Membranes

Synthesis and gas separation properties of polyimide membranes derived from oxygencyclic pseudo-Tröger's base

2021 ◽  
pp. 119604
Author(s):  
Shuanyan Kang ◽  
Zhiguang Zhang ◽  
Lei Wu ◽  
Shan Xu ◽  
Guolong Huo ◽  
...  
Keyword(s):  
Gas Separation ◽  
Troger's Base ◽  
Polyimide Membranes

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

Molecular Design of Tröger’s Base-Based Polymers Containing Spirobichroman Structure for Gas Separation

2017 ◽  
Vol 56 (44) ◽  
pp. 12783-12788 ◽  
Author(s):  
Caili Zhang ◽  
Jie Yan ◽  
Zhikang Tian ◽  
Xiangbao Liu ◽  
Bing Cao ◽  
...  
Keyword(s):  
Gas Separation ◽  
Molecular Design ◽  
Troger's Base
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