Back Cover: Thermally Rearranged Polymer Membranes Containing Tröger's Base Units Have Exceptional Performance for Air Separations (Angew. Chem. Int. Ed. 18/2018). Issue 18 (24th March 2018)

• Record Type: Journal Article
• Authors: Meckler, Stephen M.; Bachman, Jonathan E.; Robertson, Benjamin P.; Zhu, Chenhui; Long, Jeffrey R.; Helms, Brett A.
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 18(2018)
• Page Start: 5178
• Page End: 5178
• Publication Date: 2018-03-24
• Subjects: gas separations -- membranes -- polymers -- selective transport -- Tröger's base; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201802728
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract : Gas‐separation membranes rely on rigid backbones and high porosity for enhanced selectivity and permeability. In their Communication onpage 4912 ff., B. A. Helms et al. demonstrate the synthesis of thermally rearranged polymer membranes containing rigid, contorted Tröger's base units that show exceptional O2 /N2 separation performance. The smaller O2 molecules can "squeeze through the cracks" in the rigid polymer pore network. Credit: wall image adapted from https://flic.kr/p/nER9MF.