02095nas a2200217   4500008004100000022001400041245008900055210006900144260000800213300001100221490000800232520133000240653002901570653002601599653003101625653002501656653003301681100002201714700002201736856011901758       2023                        eng d  a0376-738800aPPO-ZIF MMMs possessing metal-polymer interactions for propane/ propylene separation0 aPPOZIF MMMs possessing metalpolymer interactions for propane pro  cFEB  a1212080 v6683 a<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>
10aInterfacial interactions10aMixed matrix membrane10aOlefin-paraffin separation10apoly(phenyleneoxide)10aZeolitic imidazole framework1 aKunjattu, Shebeeb1 aKharul, Ulhas, K.  uhttps://library.ncl.res.in/content/ppo-zif-mmms-possessing-metal-polymer-interactions-propane-propylene-separation