%0 journal article
%@ 1022-1352
%A Fritsch, D., Bengtson, G., Carta, M., McKeown, N.B.

%D 2011
%J Macromolecular Chemistry and Physics
%N 11
%P 1137-1146 
%R doi:10.1002/macp.201100089
%T Synthesis and Gas Permeation Properties of Spirobischromane-Based Polymers of Intrinsic Microporosity
%U https://doi.org/10.1002/macp.201100089
11 
%X significantly lower values for permeability. The solubility coefficient for CO2 of two of the copolymers exceed even that of PIM-1, which previously demonstrated the highest value for a membraneforming polymer. Therefore, these polymers might be useful for gas or vapor separations relying on solubility selectivity.