Premium
High‐Performance Membranes from Polyimides with Intrinsic Microporosity
Author(s) -
Ghanem Bader S.,
McKeown Neil B.,
Budd Peter M.,
Selbie James D.,
Fritsch Detlev
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200702400
Subject(s) - materials science , membrane , polymer , polyimide , chemical engineering , permeability (electromagnetism) , polymer chemistry , volume (thermodynamics) , polymer science , composite material , chemistry , thermodynamics , biochemistry , physics , layer (electronics) , engineering
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.