Ultrahigh-permeance PIM-1 based thin film nanocomposite membranes on PAN supports for CO2 separation

Content Provider	Semantic Scholar
Author	Bhavsar, Rupesh S. Mitra, Tamoghna Adams, Dave J. Cooper, Andrew I. Budd, Peter M.
Copyright Year	2018
Abstract	Abstract High permeance membranes were produced by addition of highly permeable nanoparticulate fillers (hypercrosslinked polystyrene, HCP, and its carbonized form, C-HCP) to a high free volume polymer (polymer of intrinsic microporosity PIM-1) in a thin film (typically 2 µm) on a porous polyacrylonitrile support. Self-standing mixed matrix membranes (MMMs) of thicknesses in the range 40–90 µm were also prepared with the same polymer and fillers. While robust MMMs could only be formed for moderate filler loadings, thin film nanocomposite (TFN) membranes could be produced from dispersions with filler loadings up to 60 wt%. On increasing the filler loading, CO 2 permeance increased in line with the predictions of the Maxwell model for a highly permeable filler. Physical ageing led to some loss of permeance coupled with an increase in CO 2 /N 2 selectivity. However, for TFN membranes the greatest effects of ageing were seen within 90 days. After ageing, TFN membranes showed high permeance with reasonable selectivity; for example, with 60 wt% C-HCP, CO 2 permeance > 9300 GPU, CO 2 /N 2 selectivity ~ 11.
Starting Page	878
Ending Page	886
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1016/j.memsci.2018.07.089
Volume Number	564
Alternate Webpage(s)	http://eprints.gla.ac.uk/166044/1/166044.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.memsci.2018.07.089
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article