Polymers of intrinsic microporosity (PIMs) substituted with methyl tetrazole

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DOIResolve DOI: http://doi.org/10.1016/j.polymer.2012.07.055
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TypeArticle
Journal titlePolymer
Volume53
Issue20
Pages43674372; # of pages: 6
SubjectMicroporosity; Membrane; Tetrazole
AbstractA polymer of intrinsic microporosity (PIM-1) containing nitrile groups was reacted by [2 + 3] cycloaddition reaction to give a polymer substituted with tetrazole groups (TZ-PIM), and then was further methylated to give a new PIM substituted with methyl tetrazole groups (MTZ-PIM). In contrast to TZ-PIMs, the MTZ-PIMs had distinctly improved solubility characteristics, enabling a more detailed investigation of the degree of conversion for the cycloaddition reaction and the structures of TZ-PIMs, which showed the presence of two kinds of tetrazole rings. Compared with PIM-1, the MTZ-PIM showed higher gas permselectivity with a corresponding decrease in gas permeability for pure gas pairs such as O₂/N₂ and CO₂/N₂, and for mixed gases, such as CO₂/N₂. Data for selectivity coupled with high gas permeability is close to the Robeson 2008 upper-bound performance limit for the O₂/N₂ and CO2/N2 pure gas pairs, and exceeds the upper-bound for the CO₂/N₂ mixed gas pair.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NRC number53101
NPARC number20597327
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Record identifier584dbcc2-c1c3-43d6-a70b-ac4e93258ecf
Record created2012-09-13
Record modified2016-05-09
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