@article {48312,
	title = {PPO-ZIF MMMs possessing metal-polymer interactions for propane/ propylene separation},
	journal = {Journal of Membrane Science},
	volume = {668},
	year = {2023},
	month = {FEB},
	pages = {121208},
	type = {Article},
	abstract = {<p>
	An assertive formation of ZIF-based mixed matrix membranes (MMMs) with polyphenylene oxide (PPO), a high permeability polymer as a host, is presented. The interfacial interactions between the filler particles and polymer matrix are established by DSC and XPS analyses. The ZIF loading could be achieved up to 40\% without hampering the stability of the resulting MMMs. These membranes were evaluated for pure gas permeability, specifically aiming at C3H6/C3H8 separation, a highly desired application in industry. The ZIF-PPO hybrids display promising pure gas as well as mixed gas permeation performance. The 40\% ZIF-8 and ZIF-67 loaded membrane display promising C3H6/C3H8 selectivity of 27.5 and 25, with a permeability of 12 and 13 barrer, respectively. The enhanced selectivity is attributed to the absence of defects eliminated due to metal-polymer interactions. The permeation study of a 30\% ZIF-8 loaded membrane while varying transmembrane pressure and long-time exposure (150 h) of propylene at 60 psi indicated the excellent stability of the membrane. The sorption analysis further confirmed the molecular sieving characteristics of the ZIF@PPO MMMs. The mixed gas permeation performance showed promising results of high permeability as well as maintaining selectivity over a wide range of compositions.</p>
},
	keywords = {Interfacial interactions, Mixed matrix membrane, Olefin-paraffin separation, poly(phenyleneoxide), Zeolitic imidazole framework},
	issn = {0376-7388},
	doi = {10.1016/j.memsci.2022.121208},
	author = {Kunjattu, H. Shebeeb and Kharul, Ulhas K.}
}
