@misc{budd_intrinsic_microporosity_2007, author={Budd, P.M., Selbie, J.D., Awal, M.A., McKeown, N.B., Ghanem, B.S., Msayib, K.J., Fritsch, D.}, title={Intrinsic Microporosity in Polyimides}, year={2007}, howpublished = {journal article}, abstract = {Polymers with molecular structures that cannot pack efficiently in the solid state and therefore trap a large amount of free volume may be regarded as having “intrinsic microporosity” (effective pore dimensions <2 nm). Polymers of intrinsic microporosity (PIMs) typically have rigid backbones (e.g., ladder-like sequences) and incorporate sites of contortion (e.g., spiro-centers) that force the backbone to twist and turn. Here we describe a novel polyimide that incorporates features of a PIM. We also demonstrate that other polyimides that exhibit very high permeability to gases may be regarded as “intrinsically microporous”.}, note = {Budd, P.; Selbie, J.; Awal, M.; McKeown, N.; Ghanem, B.; Msayib, K.; Fritsch, D.: Intrinsic Microporosity in Polyimides. PMSE Preprints. 2007. vol. 97, 276-277.}}