Synthesis, characterization, and gas permeation properties of a novel group of polymers with intrinsic microporosity: PIM-polyimides

Ghanem, Bader S., McKeown, Neil B., Budd, Peter M., Al-Harbi, Nasser M., Fritsch, Detlev, Heinrich, Kathleen, Starannikova, Ludmila, Tokarev, Andrei and Yampolskii, Yuri 2009. Synthesis, characterization, and gas permeation properties of a novel group of polymers with intrinsic microporosity: PIM-polyimides. Macromolecules 42 (20) , pp. 7881-7888. 10.1021/ma901430q

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Abstract

A range of polyimides with characteristics similar to a polymer of intrinsic microporosity (PIM) were prepared by reaction with various aromatic diamines of a bis(carboxylic anhydride) incorporating a spiro-center. The polymers exhibited high surface area, as determined by nitrogen adsorption, and high thermal stability. Membrane gas permeation experiments showed PIM-polyimides to be among the most permeable of all polyimides and to have selectivities close to the upper bound for several important gas pairs. A group contribution method was used to predict permeability coefficients and separation factors for further PIM-polyimide structures, revealing worthwhile targets for future synthetic efforts.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	American Chemical Society
ISSN:	0024-9297
Last Modified:	31 Jan 2020 07:35
URI:	https://orca.cardiff.ac.uk/id/eprint/13939

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