%0 journal article
%@ 0376-7388
%A Budd, P.M., Msayib, K.J., Tattershall, C.E., Ghanem, B.S., Reynolds, K.J., McKeown, N.B., Fritsch, D.

%D 2005
%J Journal of Membrane Science
%N 1-2
%P 263-269 
%R doi:10.1016/j.memsci.2005.01.009
%T Gas separation membranes from polymers of intrinsic microporosity
%U https://doi.org/10.1016/j.memsci.2005.01.009
1-2 
%X their rigid but contorted molecular structures, which frustrate packing and so create free volume, coupled with chemical functionality giving strong intermolecular interactions.