Energy-efficient hydrogen separation by AB-type ladder-polymer molecular sieves.
basic_science · Level V
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- Record sourced from PubMed, PMID 25043652.
- Also identified by DOI 10.1002/adma.201401328.
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Abstract
Increases in hydrogen selectivity of more than 100% compared with the most selective ladder polymer of intrinsic microporosity (PIM) reported to date are achieved with self-polymerized A-B-type ladder monomers comprising rigid and three-dimensional 9,10-dialkyl-substituted triptycene moieties. The selectivities match those of materials commercially employed in hydrogen separation, but the gas permeabilities are 150-fold higher. This new polymer molecular sieve is also the most selective PIM for air separation.