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

Mitra, Tamoghna ORCID: 0000-0002-1649-6667, Bhavsar, Rupesh S, Adams, Dave J, Budd, Peter M and Cooper, Andrew I ORCID: 0000-0003-0201-1021 (2016) PIM-1 mixed matrix membranes for gas separations using cost-effective hypercrosslinked nanoparticle fillers. CHEMICAL COMMUNICATIONS, 52 (32). pp. 5581-5584. ISSN 1359-7345, 1364-548X

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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.

Item Type:	Article
Uncontrolled Keywords:	40 Engineering, 3403 Macromolecular and Materials Chemistry, 4016 Materials Engineering, 34 Chemical Sciences, Nanotechnology, Bioengineering, Aging
Depositing User:	Symplectic Admin
Date Deposited:	19 May 2016 09:18
Last Modified:	23 Nov 2024 03:59
DOI:	10.1039/c6cc00261g
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3001276