High-performance membranes from polyimides with intrinsic microporosity.

Ghanem, Bader S; McKeown, Neil B; Budd, Peter M; Selbie, James D; Fritsch, Detlev · Adv Mater · 2008

basic_science · Level V

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Abstract

Membranes with high permeability to gases are formed from polyimides with rigid backbones that incorporate a spiro-centre. 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.