Synthesis and gas permeation properties of novel spirobisindane-based polyimides of intrinsic microporosity

2013 ◽  
Vol 4 (13) ◽  
pp. 3813 ◽  
Author(s):  
Yulia Rogan ◽  
Ludmila Starannikova ◽  
Victoria Ryzhikh ◽  
Yuri Yampolskii ◽  
Paola Bernardo ◽  
...  
2009 ◽  
Vol 42 (20) ◽  
pp. 7881-7888 ◽  
Author(s):  
Bader S. Ghanem ◽  
Neil B. McKeown ◽  
Peter M. Budd ◽  
Nasser M. Al-Harbi ◽  
Detlev Fritsch ◽  
...  

2014 ◽  
Vol 47 (22) ◽  
pp. 7900-7916 ◽  
Author(s):  
Elena Tocci ◽  
Luana De Lorenzo ◽  
Paola Bernardo ◽  
Gabriele Clarizia ◽  
Fabio Bazzarelli ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (61) ◽  
pp. 32148 ◽  
Author(s):  
Muntazim Munir Khan ◽  
Gisela Bengtson ◽  
Silvio Neumann ◽  
Md. Mushfequr Rahman ◽  
Volker Abetz ◽  
...  

Author(s):  
Sarah A. Felemban ◽  
C. Grazia Bezzu ◽  
Bibiana Comesaña-Gándara ◽  
Johannes Carolus Jansen ◽  
Alessio Fuoco ◽  
...  

A series of nine polymers of intrinsic microporosity (PIMs) derived from different bis-catechol monomers and 2,3,7,8-tetrafluoro-5,5’,10,10’-tetraoxidethianthrene (TOT) were synthesised and tested for their potential use as gas separation membranes. As...


Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 249
Author(s):  
Yasuhisa Hasegawa ◽  
Chie Abe ◽  
Mayumi Natsui ◽  
Ayumi Ikeda

The polycrystalline CHA-type zeolite layer with Si/Al = 18 was formed on the porous α-Al2O3 tube in this study, and the gas permeation properties were determined using single-component H2, CO2, N2, CH4, n-C4H10, and SF6 at 303–473 K. The membrane showed permeation behavior, wherein the permeance reduced with the molecular size, attributed to the effect of molecular sieving. The separation performances were also determined using the equimolar mixtures of N2–SF6, CO2–N2, and CO2–CH4. As a result, the N2/SF6 and CO2/CH4 selectivities were as high as 710 and 240, respectively. However, the CO2/N2 selectivity was only 25. These results propose that the high-silica CHA-type zeolite membrane is suitable for the separation of CO2 from CH4 by the effect of molecular sieving.


Membranes ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 214-227 ◽  
Author(s):  
Muntazim Khan ◽  
Volkan Filiz ◽  
Thomas Emmler ◽  
Volker Abetz ◽  
Toenjes Koschine ◽  
...  

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