Impact of Layered Perovskite Oxide LaYbAlO on Structure and Transport Properties of Polyetherimide.
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2022
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Abstract
This study aims to improve properties of Ultem polyetherimide (PEI) by incorporating up to 2 wt% additives of the perovskite oxide LaYbAlO (LYA). The structure of dense PEI/LYA films was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) in combination with an analysis of their elemental composition using energy-dispersive spectroscopy (EDS). The PEI/LYA films exhibit a two-layer structure. Contact angle measurements revealed hydrophilization of the membrane surface enriched with the perovskite. The transport properties were tested via gas separation and pervaporation processes. The separation selectivity of He/N and O/N gas pairs increased with the growth of the LYA content in the membranes. Pervaporation of a methanol(MeOH)-cyclohexane(CH) mixture was effective due to the high sorption of MeOH in the PEI/LYA membranes. The maximal pervaporation separation index was found for the PEI/LYA(2%) membrane.| Reference Key |
pulyalina2022impactinternational
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| Authors | Pulyalina, Alexandra;Rostovtseva, Valeriia;Faykov, Ilya;Saprykina, Natalia;Golikova, Alexandra;Fedorova, Anna;Polotskaya, Galina;Novikov, Alexander; |
| Journal | International journal of molecular sciences |
| Year | 2022 |
| DOI | 715 |
| URL | |
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