biostudies-literatureChen JDefense Threat Reduction Agencye202215250https://www.ebi.ac.uk/biostudies/studies/S-EPMC10107563biostudies-literatureUnknown62(8)Dibenzomethanopentacene (DBMP) is shown to be a useful structural component for making Polymers of Intrinsic Microporosity (PIMs) with promise for making efficient membranes for gas separations. DBMP-based monomers for PIMs are readily prepared using a Diels-Alder reaction between 2,3-dimethoxyanthracene and norbornadiene as the key synthetic step. Compared to date for the archetypal PIM-1, the incorporation of DBMP simultaneously enhances both gas permeability and the ideal selectivity for one gas over another. Hence, both ideal and mixed gas permeability data for DBMP-rich co-polymers and an amidoxime modified PIM are close to the current Robeson upper bounds, which define the state-of-the-art for the trade-off between permeability and selectivity, for several important gas pairs. FurtheAngewandte Chemie (International ed. in English)Dibenzomethanopentacene-Based Polymers of Intrinsic Microporosity for Use in Gas-Separation Membranes.PMC10107563HDTRA1-18-1-0054Longo MCarolus Jansen JChen JMonteleone MComesana Gandara BMcKeown NBFuoco AEsposito EfalseDibenzomethanopentacene-Based Polymers of Intrinsic Microporosity for Use in Gas-Separation Membranes.Dibenzomethanopentacene (DBMP) is shown to be a useful structural component for making Polymers of Intrinsic Microporosity (PIMs) with promise for making efficient membranes for gas separations. DBMP-based monomers for PIMs are readily prepared using a Diels-Alder reaction between 2,3-dimethoxyanthracene and norbornadiene as the key synthetic step. Compared to date for the archetypal PIM-1, the incorporation of DBMP simultaneously enhances both gas permeability and the ideal selectivity for one gas over another. Hence, both ideal and mixed gas permeability data for DBMP-rich co-polymers and an amidoxime modified PIM are close to the current Robeson upper bounds, which define the state-of-the-art for the trade-off between permeability and selectivity, for several important gas pairs. Furthe2023-01-01T00:00:00Z2023 Feb2025-07-10T03:08:18.55Z2025-04-06T11:22:05.82ZS-EPMC101075633651135710.1002/anie.202215250