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New Approach for Description of Sorption and Swelling phenomena in Liquid + Polymer Membrane Systems.
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SYSNO ASEP 0473280 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title New Approach for Description of Sorption and Swelling phenomena in Liquid + Polymer Membrane Systems. Author(s) Randová, A. (CZ)
Bartovská, L. (CZ)
Hovorka, Š. (CZ)
Bartovský, T. (CZ)
Izák, Pavel (UCHP-M) RID, ORCID, SAI
Kárászová, Magda (UCHP-M) RID, SAI
Vopička, O. (CZ)
Lindnerová, V. (CZ)Source Title Separation and Purification Technology. - : Elsevier - ISSN 1383-5866
Roč. 179, MAY (2017), s. 475-485Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords description of sorption ; polymer membranes systems ; new method Subject RIV CI - Industrial Chemistry, Chemical Engineering OECD category Chemical process engineering R&D Projects LD14094 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UCHP-M - RVO:67985858 UT WOS 000397688200051 EID SCOPUS 85013652999 DOI 10.1016/j.seppur.2017.02.032 Annotation This work reports on new method for description of sorption and swelling phenomena in liquid + polymer systems. An innovative approach to description of polymer-solvent interactions combines swelling and sorption properties of polymeric membranes in liquid media. It stems from gravimetric (material mass change) and dilatometric (material volume change) experiments. Further, we introduced a new parameter, a product of the dilatation interaction factor and the solubility of the organic liquid in the swollen polymer, which can describe the moving ability of polymer chains of swollen polymer. The approach was developed on the basis of the data determined for low density semicrystalline polyethylene (LDPE) with benzene and cyclohexane derivates. The obtained results are presented as functions of temperature, number of C-atoms in the side chain of liquid cyclic molecules, and as a function of van der Waals volume of liquid penetrants. The moving ability of polymer chains increases with increasing temperature, but decreases with increasing number of C-atoms in the side chain of penetrants. The new parameter was determined also for rubbery polydimethylsiloxane (PDMS), Lukopren, modified Lukopren with embedded montmorillonite and on polyvinylidene fluoride (PVDF) membrane samples. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2017
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