Počet záznamů: 1
Tailoring the Thermal and Mechanical Properties of PolyActiveTM Poly(Ether-Ester) Multiblock Copolymers Via Blending with CO2-Phylic Ionic Liquid.
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SYSNO ASEP 0541358 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Tailoring the Thermal and Mechanical Properties of PolyActiveTM Poly(Ether-Ester) Multiblock Copolymers Via Blending with CO2-Phylic Ionic Liquid. Tvůrce(i) Klepić, M. (CZ)
Fuoco, A. (IT)
Monteleone, M. (IT)
Esposito, E. (IT)
Friess, Karel (UCHP-M)
Petrusová, Zuzana (UCHP-M) RID, ORCID, SAI
Izák, Pavel (UCHP-M) RID, ORCID, SAI
Jansen, J.C. (IT)Číslo článku 890 Zdroj.dok. Polymers. - : MDPI
Roč. 12, č. 4 (2020)Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova block copolymer membranes ; ionic liquid ; blends Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical engineering (plants, products) CEP EF16_026/0008413 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA18-05484S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000535587700160 EID SCOPUS 85084575830 DOI 10.3390/polym12040890 Anotace This paper reports on the preparation and testing of blend membranes based on polyvinyl alcohol (PVA) and 1-ethyl-3-methylimidazolium dicyanamide ([EMIM] [DCA]) ionic liquid (IL) for effective CO2/H-2 gas separation. Stable membranes with 9, 14, 24, 42 and 53 wt.% of IL were prepared via the solution casting procedure. Structural analysis (XRD, Raman, TGA and DSC) revealed that the increase of the incorporated IL content in PVA affected e.g. crystalline orientation in the diffraction plane 1 0 1 in favour of plane 2 0 0. The presence of the IL shifted the Tg (65 degrees C) and Tm (165 degrees C) of neat PVA to lower temperatures, towards the values of pure IL. The gas transport in neat PVA and PVA-IL blends with low IL content was found to be diffusivity-controlled, and the IL addition leads to an increase of both gas permeability and H-2/CO2 selectivity. Instead, membranes with an IL content above 20 wt.% were more permeable for CO2 due to the prevailing solubility-controlled mechanism. Compared to neat PVA, which has barrier properties, the sample PVA-IL with 53 wt.% of IL exhibited an exceptional increase in gas permeability for both gases, H-2 circa 150 times to 8.65 Barrer and CO2 permeability circa 2400 times to 66.9 Barrer, with the corresponding ideal CO2/H-2 selectivity of 7.73 that slightly exceeds the reverse CO2/H-2 Robeson 2008 upper bound. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2022 Elektronická adresa https://www.mdpi.com/2073-4360/12/4/890
Počet záznamů: 1