Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Polyimide asymmetric membrane vs. dense film for purification of MTBE oxygenate by pervaporation. / Pulyalina, Alexandra; Tataurov, Maksim; Faykov, Ilya; Rostovtseva, Valeriia; Polotskaya, Galina.
в: Symmetry, Том 12, № 3, 436, 01.03.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Polyimide asymmetric membrane vs. dense film for purification of MTBE oxygenate by pervaporation
AU - Pulyalina, Alexandra
AU - Tataurov, Maksim
AU - Faykov, Ilya
AU - Rostovtseva, Valeriia
AU - Polotskaya, Galina
N1 - Pulyalina, A.; Tataurov, M.; Faykov, I.; Rostovtseva, V.; Polotskaya, G. Polyimide Asymmetric Membrane vs. Dense Film for Purification of MTBE Oxygenate by Pervaporation. Symmetry 2020, 12, 436.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - Membrane properties are determined by their morphology, which may be symmetric (dense) or asymmetric (dense/porous). Two membrane types based on the poly[(4,4′-oxydiphenylene)pyromelliteimide] (symmetric dense and asymmetric dense/porous) were prepared for a comparative study of morphology, physical properties, and transport characteristics in the pervaporation of methanol/MTBEmixture over a wide range of concentrations including the azeotropic composition. The asymmetric membrane is a good example of improving the transport properties of the polyimide by creating structure composed of a thin dense top layer on the surface of sponge-like microporous substrate. It was found that the use of the asymmetric membrane allows increasing the total flux in separation of azeotropic mixture by 15 times as compared with the dense membrane.
AB - Membrane properties are determined by their morphology, which may be symmetric (dense) or asymmetric (dense/porous). Two membrane types based on the poly[(4,4′-oxydiphenylene)pyromelliteimide] (symmetric dense and asymmetric dense/porous) were prepared for a comparative study of morphology, physical properties, and transport characteristics in the pervaporation of methanol/MTBEmixture over a wide range of concentrations including the azeotropic composition. The asymmetric membrane is a good example of improving the transport properties of the polyimide by creating structure composed of a thin dense top layer on the surface of sponge-like microporous substrate. It was found that the use of the asymmetric membrane allows increasing the total flux in separation of azeotropic mixture by 15 times as compared with the dense membrane.
KW - Asymmetric membrane
KW - Methanol
KW - MTBE
KW - Pervaporation
KW - Polyimide
KW - TERT-BUTYL ETHER
KW - ULTRAFILTRATION MEMBRANES
KW - asymmetric membrane
KW - MIXTURES
KW - polyimide
KW - methanol
KW - SEPARATION
KW - pervaporation
UR - http://www.scopus.com/inward/record.url?scp=85082033231&partnerID=8YFLogxK
U2 - 10.3390/sym12030436
DO - 10.3390/sym12030436
M3 - Article
AN - SCOPUS:85082033231
VL - 12
JO - Symmetry
JF - Symmetry
SN - 2073-8994
IS - 3
M1 - 436
ER -
ID: 62081061