Molecularly Tuned Free Volume of Vapor Cross-Linked 6FDA-Durene/ZIF-71 MMMs for H<sub>2</sub> /CO<sub>2</sub> Separation at 150 °C.
basic_science · Level V
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- Record sourced from PubMed, PMID 27900787.
- Also identified by DOI 10.1002/adma.201603833.
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Abstract
The H<sub>2</sub> /CO<sub>2</sub> separation properties of di/triamine vapor cross-linked mixed matrix membranes with molecularly tuned free-volume at 150 °C are reported. Free-volume is molecularly tuned by altering the degree of chain-motion using cross-linkers with different chain lengths. A more restricted degree of chain-motion is achieved in the cross-linked network and the resultant membrane has a higher H<sub>2</sub> /CO<sub>2</sub> selectivity at 150 °C.