Triptycene induced enhancement of membrane gas selectivity for microporous Tröger's base polymers

Mariolino Carta; Matthew Croad; Richard Malpass-Evans; Johannes C Jansen; Paola Bernardo; Gabriele Clarizia; Karel Friess; Marek Lanč; Neil B McKeown

doi:10.1002/adma.201305783

Triptycene induced enhancement of membrane gas selectivity for microporous Tröger's base polymers

Adv Mater. 2014 Jun 4;26(21):3526-31. doi: 10.1002/adma.201305783. Epub 2014 Mar 14.

Authors

Mariolino Carta¹, Matthew Croad, Richard Malpass-Evans, Johannes C Jansen, Paola Bernardo, Gabriele Clarizia, Karel Friess, Marek Lanč, Neil B McKeown

Affiliation

¹ School of Chemistry, Cardiff University, Cardiff, CF10 2AT, UK.

Abstract

A highly gas permeable polymer with exceptional size selectivity is prepared by fusing triptycene units together via a poly-merization reaction involving Tröger's base formation. The extreme rigidity of this polymer of intrinsic microporosity (PIM-Trip-TB) facilitates gas permeability data that lie well above the benchmark 2008 Robeson upper bounds for the important O2 /N2 and H2 /N2 gas pairs.

Keywords: gas separation; intrinsic microporosity; polymer membranes; triptycene.

Publication types

Research Support, Non-U.S. Gov't