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Gas Transport Properties of PEBAX®/Room Temperature Ionic Liquid Gel Membranes
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SYSNO ASEP 0381989 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Gas Transport Properties of PEBAX®/Room Temperature Ionic Liquid Gel Membranes Author(s) Bernardo, P. (IT)
Jansen, J. C. (IT)
Bazzarelli, F. (IT)
Tasselli, F. (IT)
Fuoco, A. (IT)
Friess, K. (CZ)
Izák, Pavel (UCHP-M) RID, ORCID, SAI
Jarmarová, Veronika (UCHP-M)
Kačírková, Marie (UCHP-M) RID
Clarizia, G. (IT)Source Title Separation and Purification Technology. - : Elsevier - ISSN 1383-5866
Roč. 97, SI (2012), s. 73-82Number of pages 10 s. Action Conference on Ionic Liquids in Separation and Purification Technology (ILSEPT) /1./ Event date 04.09.2011-07.09.2011 VEvent location Sitges Country ES - Spain Event type EUR Language eng - English Country GB - United Kingdom Keywords room temperature ionic liquid ; ionic liquid ; polymer gel Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GAP106/10/1194 GA ČR - Czech Science Foundation (CSF) Institutional support UCHP-M - RVO:67985858 UT WOS 000309373300010 DOI https://doi.org/10.1016/j.seppur.2012.02.041 Annotation This work evaluates the possibility to tailor the gas separation properties of elastomeric block copolyamide membranes by means of room temperature ionic liquid (RTIL), based on the 1-n-alkyl-3- methylimidazolium cation. Polymeric gel membranes were prepared by adding from 20 to 80 wt.% of 1-butyl-3-methylimidazolium trifluoromethanesulfonate, [BMIM][CF3SO3] to Pebax 1657 and Pebax 2533. The effect of the ionic liquid on the microstructure, properties and performance of these membranes was discussed. DSC analysis showed a gradual decrease of the melting point of the polyamide (PA) blocks in the gel with a decrease in the corresponding melting enthalpy and a complete disappearance of the crystallinity of the polyether (PE) phase with increasing IL content in the case of Pebax 1657. In Pebax 2533 there is virtually no shift in the peak positions and both crystal phases remain present in the gel, indicating effective phase separation between the crystalline fraction of the polymer and the IL, in contrast with the high compatibility and the good mixing of the polymer and the IL observed in Pebax 1657. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2013
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