caa a22 4500 605489599 CHVBK 20210128105157.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1134/S1061933X15030035 doi (NATIONALLICENCE)springer-10.1134/S1061933X15030035 Peculiarities of the transport properties of chitosan films. 2. Density of pervaporation flux through chitosan films with different areas [Elektronische Daten] [E. Ageev, N. Matushkina] Transmembrane flux density may depend on membrane area, provided that the properties of the membrane vary with variations in the latter. This situation takes place for pervaporation processes realized with the use of chitosan films swelling in water-isopropanol solutions being separated. In this work, the flux density and permeate composition have been determined as depending on the composition of a molding solution containing a precipitant as one of its components, concentration of a solution being separated, and film area (2 and 20 cm2) in pervaporation setups. Irrespective of the composition of a molding solution, abnormally high flux densities of water and isopropanol, as compared with the flux density of a water-alcohol solution, take place for chitosan films with an area of 20 cm2. When the pervaporation is performed through a 2-cm2 film, all observed abnormalities disappear with the exception of the only one: the permeates is enriched with isopropanol in all experiments. Pleiades Publishing, Ltd., 2015 Ageev E. Department of Chemistry, Moscow State University, 119991, Moscow, Russia aut Matushkina N. Department of Chemistry, Moscow State University, 119991, Moscow, Russia aut Colloid Journal Pleiades Publishing 77/3(2015-05-01), 256-260 1061-933X 77:3<256 2015 77 10595 https://doi.org/10.1134/S1061933X15030035 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061933X15030035 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ageev E. Department of Chemistry, Moscow State University, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Matushkina N. Department of Chemistry, Moscow State University, 119991, Moscow, Russia aut NATIONALLICENCE 773 0- Colloid Journal Pleiades Publishing 77/3(2015-05-01), 256-260 1061-933X 77:3<256 2015 77 10595 SWISSBIB 605489556