Enhancement of performance and stability of thin-film nanocomposite membranes for organic solvent nanofiltration using hypercrosslinked polymer additives
نویسندگان
چکیده
Hypercrosslinked polymer (HCP) additives were successfully incorporated into two matrices: glassy with intrinsic microporosity comprising ethanoanthracene and Tröger's base (PIM-EA-TB) as well rubbery polydimethylsiloxane (PDMS), forming thin-film nanocomposite (TFN) membranes for organic solvent nanofiltration (OSN) applications. The thermal stability surface morphology of TFN characterized by TGA SEM. OSN results showed that HCP increased the alcohol permeances both kinds it provided extra pathways molecules to transport through membranes. Particularly, PIM-EA-TB membrane gained above 32% improvement on methanol ethanol after loading 5 wt% HCP, whilst maintaining a rejection 92% Rose Bengal. Moreover, physical aging was retarded swelling PDMS in non-polar solvents reduced. In small quantities, nanoparticles proved be effective improve performances
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ژورنال
عنوان ژورنال: Journal of Membrane Science
سال: 2022
ISSN: ['1873-3123', '0376-7388']
DOI: https://doi.org/10.1016/j.memsci.2021.120172