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Issue 32, 2016
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PIM-1 mixed matrix membranes for gas separations using cost-effective hypercrosslinked nanoparticle fillers

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Abstract

High-free-volume glassy polymers, such as polymers of intrinsic microporosity (PIMs) and poly(trimethylsilylpropyne), have attracted attention as membrane materials due to their high permeability. However, loss of free volume over time, or aging, limits their applicability. Introduction of a secondary filler phase can reduce this aging but either cost or instability rules out scale up for many fillers. Here, we report a cheap, acid-tolerant, nanoparticulate hypercrosslinked polymer ‘sponge’ as an alternative filler. On adding the filler, permeability is enhanced and aging is strongly retarded. This is accompanied by a CO2/N2 selectivity that increases over time, surpassing the Robeson upper bound.

Graphical abstract: PIM-1 mixed matrix membranes for gas separations using cost-effective hypercrosslinked nanoparticle fillers

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Publication details

The article was received on 11 Jan 2016, accepted on 21 Mar 2016 and first published on 21 Mar 2016


Article type: Communication
DOI: 10.1039/C6CC00261G
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Citation: Chem. Commun., 2016,52, 5581-5584
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    PIM-1 mixed matrix membranes for gas separations using cost-effective hypercrosslinked nanoparticle fillers

    T. Mitra, R. S. Bhavsar, D. J. Adams, P. M. Budd and A. I. Cooper, Chem. Commun., 2016, 52, 5581
    DOI: 10.1039/C6CC00261G

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