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Sorption Characteristics of PDMS in Ternary Systems Benzene (1) + Alcohols (2) + Ionic Liquid (3) and Corresponding Binary Subsystems
Randová, A. ; Bartovská, L. ; Hovorka, Š. ; Friess, K. ; Izák, Pavel
In this work the study of sorption characteristics of PDMS in ternary system benzene (1) + methanol or butanol (2) + ionic liquid (3) and corresponding binary subsystems at the temperature of 20°C is presented. The experimental data on total sorption were determined gravimetrically [3], the experimental data on preferential sorption were evaluated from the concentration change induced by an immersion of the membrane into the liquid mixture [3]. The volume changes of swollen membrane immersed in the studied liquid systems were determined from the dimensional changes of the membrane samples changes in X and Y axis dimensions were monitored directly in liquid by an optical method [1, 3] and membrane sheet thickness was measured by an Inductive Dial Indicator (Mahr, Germany).
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Sorpce kapalné směsi metanol-benzen v polymerních membránách
Randová, A. ; Bartovská, L. ; Izák, Pavel ; Hovorka, Š. ; Friess, K.
The solubility of single mixture components in the membrane is important for the effectivity of membrane separation processes. This information is accessible from the experimental data on the preferential sorption in combination with the experimental data on the total amount of the sorbed liquid. The sorption from binary liquid solutions methanol-benzene in Nafion and low density polyethylene membranes has been studied in the whole concentration range at constant temperature of 25°C.
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