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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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Supplementary files

Article information


Submitted
11 Jan 2016
Accepted
21 Mar 2016
First published
21 Mar 2016

This article is Open Access

Chem. Commun., 2016,52, 5581-5584
Article type
Communication
Author version available

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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