Poly[3-ethyl-1-vinyl-imidazolium] diethyl phosphate/pebax® 1657 composite membranes and their gas separation performance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F20%3A43921584" target="_blank" >RIV/60461373:22340/20:43921584 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2077-0375/10/9/224" target="_blank" >https://www.mdpi.com/2077-0375/10/9/224</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/membranes10090224" target="_blank" >10.3390/membranes10090224</a>
Alternative languages
Result language
angličtina
Original language name
Poly[3-ethyl-1-vinyl-imidazolium] diethyl phosphate/pebax® 1657 composite membranes and their gas separation performance
Original language description
Poly(ionic liquid)s are an innovative class of materials with promising properties in gas separation processes that can be used to boost the neat polymer performances. Nevertheless, some of their properties such as stability and mechanical strength have to be improved to render them suitable as materials for industrial applications. This work explored, on the one hand, the possibility to improve gas transport and separation properties of the block copolymer Pebax® 1657 by blending it with poly[3-ethyl-1-vinyl-imidazolium] diethyl phosphate (PEVI-DEP). On the other hand, Pebax® 1657 served as a support for the PIL and provided mechanical resistance to the samples. Pebax® 1657/PEVI-DEP composite membranes containing 20, 40, and 60 wt.% of PEVI-DEP were cast from solutions of the right proportion of the two polymers in a water/ethanol mixture. The PEVI-DEP content affected both the morphology of the dense membranes and gas transport through the membranes. These changes were revealed by scanning electron microscopy (SEM), time-lag, and gravimetric sorption measurements. Pebax® 1657 and PEVI-DEP showed similar affinity towards CO2, and its uptake or solubility was not influenced by the amount of PIL in the membrane. Therefore, the addition of the PIL did not lead to improvements in the separation of CO2 from other gases. Importantly, PEVI-DEP (40 wt.%) incorporation affected and improved permeability and selectivity by more than 50% especially for the separation of light gases, e.g., H2/CH4 and H2/CO2, but higher PEVI-DEP concentrations lead to a decline in the transport properties. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/GA19-14547S" target="_blank" >GA19-14547S: New composite membranes for targeted gas and vapour separations (CoMeTS)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Membranes
ISSN
2077-0375
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
9
Country of publishing house
CH - SWITZERLAND
Number of pages
16
Pages from-to
"224-1"-"224-16"
UT code for WoS article
000581989300001
EID of the result in the Scopus database
2-s2.0-85090393500