Research output: Contribution to journal › Article › peer-review
Strongly selective polymer membranes modified with heteroarm stars for the ethylene glycol dehydration by pervaporation. / Rostovtseva, Valeriia; Pulyalina, Alexandra; Rudakova, Daria; Vinogradova, Ludmila; Polotskaya, Galina.
In: Membranes, Vol. 10, No. 5, 86, 05.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Strongly selective polymer membranes modified with heteroarm stars for the ethylene glycol dehydration by pervaporation
AU - Rostovtseva, Valeriia
AU - Pulyalina, Alexandra
AU - Rudakova, Daria
AU - Vinogradova, Ludmila
AU - Polotskaya, Galina
N1 - Rostovtseva, V.; Pulyalina, A.; Rudakova, D.; Vinogradova, L.; Polotskaya, G. Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation. Membranes 2020, 10, 86.
PY - 2020/5
Y1 - 2020/5
N2 - Hybrid membranes based on poly (2,6-dimethyl-1,4-phenylene oxide) modified with heteroarm stars (HAS) were developed to separate ethylene glycol/water mixtures by pervaporation. The HAS consist of a small branching center fullerene C 60 and twelve arms of different nature, six arms of nonpolar polystyrene and six arms of polar poly-tert-butyl methacrylate. The changes of structure and physical properties with HAS inclusion were systematically studied using SEM, X-ray diffraction analysis, TGA, and contact angle measurements. Mass transfer of ethylene glycol and water through membranes was studied by sorption and pervaporation tests. It was found that the growth of HAS content up to 5 wt% in the membrane leads to an increase in the total flux and a strong increase in the separation factor. To evaluate intrinsic properties of the penetrant ‒membrane system, permeability and selectivity were calculated. Overall, utilizing star-shaped macromolecules as a filler can be a promising way to improve the separation performance of diffusion membranes.
AB - Hybrid membranes based on poly (2,6-dimethyl-1,4-phenylene oxide) modified with heteroarm stars (HAS) were developed to separate ethylene glycol/water mixtures by pervaporation. The HAS consist of a small branching center fullerene C 60 and twelve arms of different nature, six arms of nonpolar polystyrene and six arms of polar poly-tert-butyl methacrylate. The changes of structure and physical properties with HAS inclusion were systematically studied using SEM, X-ray diffraction analysis, TGA, and contact angle measurements. Mass transfer of ethylene glycol and water through membranes was studied by sorption and pervaporation tests. It was found that the growth of HAS content up to 5 wt% in the membrane leads to an increase in the total flux and a strong increase in the separation factor. To evaluate intrinsic properties of the penetrant ‒membrane system, permeability and selectivity were calculated. Overall, utilizing star-shaped macromolecules as a filler can be a promising way to improve the separation performance of diffusion membranes.
KW - Ethylene glycol
KW - Pervaporation
KW - Poly(phenylene oxide)
KW - Star-shaped macromolecules
KW - TRANSPORT-PROPERTIES
KW - MACROMOLECULES
KW - PERFORMANCE
KW - POLYPHENYLENE OXIDE
KW - COMPOSITE MEMBRANES
KW - GAS-TRANSPORT
KW - POLY(PHENYLENE OXIDE) MEMBRANES
KW - star-shaped macromolecules
KW - ethylene glycol
KW - MIXED MATRIX MEMBRANES
KW - SEPARATION
KW - poly(phenylene oxide)
KW - pervaporation
KW - WATER
UR - http://www.scopus.com/inward/record.url?scp=85084179884&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/5ea1e0fb-1b80-322b-88f2-21c5b5dbbe82/
U2 - 10.3390/membranes10050086
DO - 10.3390/membranes10050086
M3 - Article
AN - SCOPUS:85084179884
VL - 10
JO - Membranes
JF - Membranes
SN - 2077-0375
IS - 5
M1 - 86
ER -
ID: 62080926