High-Performance Membranes from Polyimides with Intrinsic Microporosity


  • We acknowledge the financial support of EPSRC and INTAS.


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Membranes with high permeability to gases are formed from polyimides with rigid backbones that incorporate a spiro-centre (see figure). A route to this new range of high-free-volume polyimides is demonstrated, and exceptional performance is obtained for a polymer containing a dimethyl binaphthyl unit.